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Dr. Advait M Jukar, FLS

@amjukar.bsky.social
864 followers 572 following 85 posts

Curator of Vert. Paleo @floridamuseum.bsky.social | Curatorial Affiliate, Yale Peabody Museum | Research Associate, Smithsonian’s NMNH | former @uarizona.bsky.social | @georgemasonu.bsky.social & @Reed.edu alumnus. Big fan of nature past and present

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Reposted by Dr. Advait M Jukar, FLS
Nature Ecology & Evolution @natecoevo.nature.com · 14/09/2026
Obituary: Robert Ricklefs (1943–2026) www.nature.com/articles/s41... Polymath ecologist whose research and textbooks integrating ecology and evolution have inspired generations of students. Free to read: rdcu.be/D33fLgYcv4Ba
nature.com
Robert Ricklefs (1943–2026) - Nature Ecology & Evolution
Polymath ecologist whose research and textbooks integrating ecology and evolution have inspired generations of students.
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Reposted by Dr. Advait M Jukar, FLS
Proceedings of the National Academy of Sciences @pnas.org · 31/08/2026
Cut marks on reptile bones suggest hunter-gatherers on Mount Carmel regularly butchered and ate lizards 15,000 years ago—a practice that persisted for millennia. In Archaeology Magazine: ow.ly/AWTK50ZHlL9 In PNAS: ow.ly/kejQ50ZHlAL
Microscopic image showing cut marks on a bone from a large whip snake (Dolichophis jugularis)
Image credit: Maayan Lev
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Reposted by Dr. Advait M Jukar, FLS
Dr Craig R McClain @drcraigmc.bsky.social · 31/08/2026
New in PNAS today: we projected how climate change will reshape the body size of marine life across the entire ocean. 23,329 mollusc species, every ocean basin. The headline everyone expects is "life shrinks." The real answer is far stranger. 🧪 #marinelife www.pnas.org/doi/10.1073/...
pnas.org
Nonuniform resizing of marine life under climate change | PNAS
Global warming is often predicted to drive universal declines in animal body size, but empirical evidence remains equivocal. This is particularly t...
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Reposted by Dr. Advait M Jukar, FLS
Kau))) @carbon8.bsky.social · 12/08/2026
Grateful to see that Anubhav's research (Kaur, @amjukar.bsky.social et al.) featured @nature.com #India News—v nice article by Sahana Ghosh: "Inside an extinct hyena’s prehistoric pantry" #Pleistocene #paleoclimate #paleoecology 🔨 www.nature.com/articles/d44...
nature.com
Inside an extinct hyena’s prehistoric pantry
Chemicals in the fossils of the hyena’s prey help palaeontologists reconstruct the mosaic landscape it inhabited.
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Reposted by Dr. Advait M Jukar, FLS
Chris Widga @widga.bsky.social · 07/08/2026
Really excited about this paper. Bison are a model species for connecting fossils to modern conservation questions and millennial-scale ecosystem changes relevant to modern systems. Jonas (and all the authors) did a fantastic job bringing this out to the big picture! www.science.org/doi/10.1126/...
science.org
Paleogenomic insight into the collapse, recovery, and management of American bison
American bison (Bison bison) were nearly hunted to extinction by the 20th century. This rapid decline and the fragmented nature of remnant populations pose challenges to their recovery and resilience,...
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Reposted by Dr. Advait M Jukar, FLS
Prosanta Chakrabarty @prosanta.bsky.social · 29/07/2026
From collections to conservation: the indispensable role of natural history museums The IUCN Species Survival Commission has published a Position Statement on the vital role of biological collections in biodiversity conservation iucn.org/news/202607/...
iucn.org
From collections to conservation: the indispensable role of natural history museums
The IUCN Species Survival Commission has published a Position Statement on the vital role of biological collections in biodiversity conservation: a formal acknowledgement that natural history museums,...
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Reposted by Dr. Advait M Jukar, FLS
Matt Friedman @friedmanlab.bsky.social · 20/07/2026
New paper from @jakeberv.bsky.social harnesses a massive skeletal measurement dataset for passerines to show nested bursts in phenotypic evolution, many of which appear coincident with intervals of climate instability. www.nature.com/articles/s41...
Radial phylogenetic tree of passerine birds, with branches colored according to evolutionary rate. Color drawings of select species decorate the tips. A set of bivariate plots are shown as four panels below.
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Reposted by Dr. Advait M Jukar, FLS
Society of Vertebrate Paleontology @societyofvertpaleo.bsky.social · 13/07/2026
The Society of Vertebrate Paleontology mourns the passing of artist, activist, and entrepreneur Sir Sam Neill. 

Generations of SVP members found inspiration to become paleontologists through his portrayal of Dr. Alan Grant in the Jurassic Park films. Sam’s portrayal of Dr. Grant brought an incredible humanity, awe, candor, and determination to the scientist-hero in one of the most popular pieces of media ever produced. In the decades since the release of Jurassic Park, Sam’s portrayal created a cultural touchstone for our field the likes of which we may never find again. Whether he knew at the time or not, he became a great friend of the profession of vertebrate paleontology. Our condolences to his family, friends, and colleagues. He will be deeply missed.
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Reposted by Dr. Advait M Jukar, FLS
Gwen Pearson @bug-gwen.bsky.social · 13/07/2026
It's always nice to have biological collections acknowledged as "irreplaceable evidence bases" and essential records of life on Earth. 🧪🪲 iucn.org/news/202607/...
iucn.org
From collections to conservation: the indispensable role of natural history museums
The IUCN Species Survival Commission has published a Position Statement on the vital role of biological collections in biodiversity conservation: a formal acknowledgement that natural history museums,...
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Reposted by Dr. Advait M Jukar, FLS
Thomas R. Holtz, Jr. @arctomet.bsky.social · 12/07/2026
Leonardo Souza Lobo, Javier N. Gelfo and Sergio A. K. de Azevedo (2026) Increasing until extinction: understanding Macraucheniidae body-mass evolutionary history Paleobiology (advance online publication) DOI: doi.org/10.1017/pab.... www.cambridge.org/core/journal...
doi.org
Increasing until extinction: understanding Macraucheniidae body-mass evolutionary history | Paleobiology | Cambridge Core
Increasing until extinction: understanding Macraucheniidae body-mass evolutionary history
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Reposted by Dr. Advait M Jukar, FLS
Thomas R. Holtz, Jr. @arctomet.bsky.social · 05/07/2026
Koungoulos, L.G., Kerr, I.A.R. & O’Connor, S. Middle Holocene survival of marsupial megafauna on the north coast of New Guinea. npj biodivers (2026). doi.org/10.1038/s441...
doi.org
Middle Holocene survival of marsupial megafauna on the north coast of New Guinea - npj Biodiversity
npj Biodiversity - Middle Holocene survival of marsupial megafauna on the north coast of New Guinea
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Reposted by Dr. Advait M Jukar, FLS
Ben Miller @extinctmonsters.bsky.social · 04/07/2026
Wait everyone shut up for a second: the discovery of the Brachiosaurus holotype is at the exact midpoint between the founding of the United States and today (July 4, 1901)
Bearded guy in a hat lies next to recently uncovered sauropod humerus that is longer than him
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Reposted by Dr. Advait M Jukar, FLS
Dr. E Grace Veatch @egveatch.bsky.social · 03/07/2026
🐘 check out our newest paper from Liang Bua! www.science.org/doi/10.1126/... Did H. floresiensis hunt Stegodon? 🔪 Did they also had control use of fire? 🔥 We tested these early claims of complex behavior using taphonomy, experimental archaeology, and zooarchaeology of the Stegodon assemblage.
doi.org
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Reposted by Dr. Advait M Jukar, FLS
Natural History Museum of Los Angeles County @nhm.org · 02/07/2026
🐋 Among the 35 million real objects and artifacts in our collections, these are larger than life. Join Dr. Jorge Velez-Juarbe (Curator, Marine Mammals) behind the scenes at NHM’s Mammalogy Collection Center for a special look at gargantuan whale bones!  www.youtube.com/watch?v=GhZl...
youtube.com
Inside the Secret Warehouse of Giant Whale Bones
YouTube video by Natural History Museum of Los Angeles County (NHM)
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Reposted by Dr. Advait M Jukar, FLS
Dr Ross Barnett @deepfrieddna.bsky.social · 01/07/2026
phys.org/news/2026-06...
phys.org
Himalayan pangolin emerges as distinct species, confirmed with DNA from 19th-century specimen
The pangolin is a midsize mammal found only in Africa and Asia. The pangolins' scales make them unique, but these scales have become their undoing. Pangolins are poached for their scales, making them ...
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Reposted by Dr. Advait M Jukar, FLS
Paige Madison @fossilhistory.bsky.social · 01/07/2026
#OnThisDay in 1858, Charles Darwin and Alfred Russel Wallace's theory of evolution through natural selection was read aloud at a meeting of the Linnean Society. It was the first time the idea was ever presented to an audience.
Black-and-white photograph of an elderly Charles Darwin in profile, bald with a long white beard, wearing a dark coatBlack-and-white photographic portrait of an elderly Alfred Russel Wallace, seated, with a long white beard and round wire-frame glasses, wearing a dark velvet jacket and waistcoatScan of a 19th-century printed page headed 'On the Tendency of Species to form Varieties,' the joint 1858 paper by Charles Darwin and Alfred Wallace read to the Linnean Society, with introductory text signed by Charles Lyell and J.D. Hooker
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Reposted by Dr. Advait M Jukar, FLS
Proceedings of the National Academy of Sciences @pnas.org · 29/06/2026
There are dozens of species of similar-looking woodland salamanders in Appalachia. A study of 33 species shows that they nevertheless vary in physiological traits, such as skin resistance to water loss, metabolic rate, and cold tolerance. In PNAS: ow.ly/qhJW50ZhXem
A three-panel figure. A illustrates salamander physiology, phylogeny and habitat. B and C are scatter plots showing positive temperature trends.
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Reposted by Dr. Advait M Jukar, FLS
Dr Paul M.J. Burke @palaeoburke.bsky.social · 29/06/2026
World, here is your Crocodile Brain Encyclopedia. Our new paper, which details the internal cranial anatomy of over 43 crocodylian species is finally out! Read here: doi.org/10.1111/joa.... @pdmannion.bsky.social
doi.org
Computed tomography reveals the endocranial anatomy of Crocodylia: Implications for phylogenetic relationships and ecomorphological convergence across Crocodylomorpha
The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth ...
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Reposted by Dr. Advait M Jukar, FLS
Thomas R. Holtz, Jr. @arctomet.bsky.social · 26/06/2026
The Lonely Race to Save Ukraine’s Past - bioGraphic www.biographic.com/the-lonely-r...
biographic.com
The Lonely Race to Save Ukraine’s Past - bioGraphic
In a country ravaged by war, Ukraine’s conservators are torn between protecting the country’s past and fighting for its future.
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Reposted by Dr. Advait M Jukar, FLS
Owen Goodchild @paleowen.bsky.social · 26/06/2026
#FossilFriday it’s been a great week visiting the Texas vertebrate paleontology collection and the Texas Science museum to study proboscideans! From left to right below: the holotype of Gnathabelodon (Blancotherium) buckneri, a Torynobelodon mandible, and a Cuvieronius skull.
Holotype partial cranium of Gnathabelodon (Blancotherium) buckneri. A white skull on a green-gray plaster slab with long upward curving tusks and a long tuskless mandible. Top front view of the jaw of a shovel-tusked elephant relative. The mandible is beige with huge procumbent lower incisors set in a massive flaring symphysis.Partially reconstructed skull of the short-jawed gomphothere Cuvieronius. The skull is beige with flaring upper tusk alveoli and a wide narial opening
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Reposted by Dr. Advait M Jukar, FLS
Thomas R. Holtz, Jr. @arctomet.bsky.social · 25/06/2026
Diversification of angiosperm reproductive strategies predated the end-Cretaceous extinction | Science www.science.org/doi/10.1126/...
science.org
Diversification of angiosperm reproductive strategies predated the end-Cretaceous extinction
Angiosperm reproductive evolution is traditionally linked to the end-Cretaceous biotic crisis and subsequent ecological restructuring. Here, we report diverse and unexpectedly large diaspores (dispers...
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Reposted by Dr. Advait M Jukar, FLS
Stephan Spiekman @stephanspiekman.bsky.social · 25/06/2026
This review was inspired by my recently started Turtle Origins Research Group @smnstuttgart.bsky.social and @unihohenheim.bsky.social funded by a @dfg.de Emmy Noether Grant, which will deal more with this subject. So much more to come! For now, please enjoy: www.tandfonline.com/doi/full/10....
tandfonline.com
Getting to the root of it: perspectives on the phylogenetic origins of modern reptiles
Reptiles are currently represented by turtles, archosaurs (crocodylians and birds), and lepidosaurs (lizards, snakes and the tuatara). However, these groups represent only a fraction of the known d...
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Reposted by Dr. Advait M Jukar, FLS
Professor John R. Hutchinson @johnrhutchinson.bsky.social · 23/06/2026
Review of CH Waddington's influence on developmental biology and evo-devo: journals.biologists.com/dev/article/... includes supp info with his 50th birthday songs!
journals.biologists.com
C.H. Waddington's lasting achievements in development and evolution
ABSTRACT. C.H. Waddington (1905-1975) was a British biologist and perhaps the major figure in developmental biology between the 1940s and 1960s. He is one of the few pre-molecular-age developmental bi...
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Reposted by Dr. Advait M Jukar, FLS
Joey Bernhardt @joeybernhardt.bsky.social · 22/06/2026
🚨New paper alert🚨🔥 I’m thrilled to share new work from our lab in Ecology Letters: we tackle the challenge of making general predictions for competition in a warming world 🌡️🔥🌏 Led by the brilliant postdoc @kaleighedavis.bsky.social with @tessgrainger.bsky.social and others tinyurl.com/44hr6bzf
ecosystemscience.ca
When Warming Levels the Playing Field: Rethinking Competition in a Changing Climate — Centre for Ecosystem Management
New research led by one of our postdoctoral fellows, Dr. Kaleigh Davis, takes a step toward a more predictive understanding of network interactions in the face of climate warming by combining Modern C...
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Reposted by Dr. Advait M Jukar, FLS
J Pardo @jdpardo.bsky.social · 18/06/2026
New in @science.org ...since our first discoveries of early tetrapods, they have been thought of as "amphibians" characterized by aquatic larvae. But is this true? For the first time, we report exceptional fossils of stem tetrapod babies that upend this paradigm. 1/n www.science.org/doi/10.1126/...
science.org
Direct development of stem tetrapods across the fin-to-limb transition
Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient la...
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Reposted by Dr. Advait M Jukar, FLS
Florida Museum of Natural History @floridamuseum.bsky.social · 18/06/2026
We're hiring! 🐟 Assistant Curator of Ichthyology This is a 12-month, tenure-track position 👇 🔸 Full info: www.floridamuseum.ufl.edu/nhdept/caree... 🔸 Apply via @ufl.edu: explore.jobs.ufl.edu/en-us/job/54... 🔸 About the Dept. of Natural History, Florida Museum: www.floridamuseum.ufl.edu/nhdept/
Group of people in a studio setting observing a clear container with an object inside, some taking photos with phones.Man in blue shirt holding a large fish and a tray of smaller fish, with a Florida Fish and Wildlife Conservation Commission vehicle behind him.Two women working with animal specimens in a storage room with metal shelving and a forklift.Group of people looking at small fish and amphibians in a water tank during an outdoor educational event.
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Reposted by Dr. Advait M Jukar, FLS
Jeanne Timmons @mostlymammoths.bsky.social · 18/06/2026
"...there are actually so many positive reasons to have museums that it’s difficult to choose just one." - Dr. Alton Dooley SUPERB post about the important of #museum collections. life-from-a-certain-point-of-view.ghost.io/why-museums/
life-from-a-certain-point-of-view.ghost.io
Why Museums?
"Museum collections provide the record of past research, and the baseline for future research."
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Dr. Advait M Jukar, FLS @amjukar.bsky.social · 17/06/2026
Come join us at the @floridamuseum.bsky.social www.floridamuseum.ufl.edu/nhdept/assis...
floridamuseum.ufl.edu
Assistant Curator of Ichthyology
The Florida Museum of Natural History at the University of Florida (UF) seeks qualified applicants for a 12-month tenure-track Assistant Curator of Ichthyology. This position will be filled at the Ass...
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Reposted by Dr. Advait M Jukar, FLS
Dr. Dawn Wright @deepseadawn.bsky.social · 12/06/2026
Whale graveyard discovered at 7 km depth by Chinese scientists in the Fendouzhe, the only other personed submersible aside from Limiting Factor to reach Challenger Deep. Treasure trove of fossils and bones has already revealed a new species of extinct whale. www.nature.com/articles/d41... 🌊 🦑 🐋 🐳
nature.com
Whale graveyard discovered 7km under the sea
The treasure trove of fossils and bones has already revealed a new species of extinct whale.
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Reposted by Dr. Advait M Jukar, FLS
Brian J. Enquist @bjenquist.bsky.social · 11/06/2026
Sad to hear of the passing of Robert Ricklefs - a giant of Ecology who simultaneously pushed forward big ideas at multiple biological levels yet took time for detailed natural history .. McGill does a nice job summarizing his impressive contributions 🌐🧪 dynamicecology.wordpress.com/2026/06/11/r...
dynamicecology.wordpress.com
Robert Ricklefs – in memoriam
Robert Ricklefs, a giant of ecology, passed away on Sunday. It is hard to overstate the extensive impact Bob had on the field. He was elected a member of the National Academy of Sciences in the US,…
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Reposted by Dr. Advait M Jukar, FLS
Henry Gee 亨利·纪 @endofthepier.bsky.social · 10/06/2026
Move over, elephant graveyards - this whale necropolis extends 1,200km along the Indian Ocean seafloor at depths from 4,600-7,000m; has accumulated at least 476 fossil whale carcasses over the past 5m years; and has 5 active whale falls. Paper in @nature.com www.nature.com/articles/s41...
nature.com
A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone - Nature
Researchers uncovered an enormous deep-sea accumulation of whale remains in the southeastern Indian Ocean, showing long-term, specialized ecosystems and an extensive fossil record that offers new insi...
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Reposted by Dr. Advait M Jukar, FLS
Richard Fallon @richardfallon.bsky.social · 04/06/2026
For those interested in the tradition of geological Gesamtkunstwerk in natural history museums, check out Stefanie Jovanovic-Kruspel's recent article: shttps://valuepast.hypotheses.org/6678. Not sure I'd actually noticed the pterodactyls on the columns of the @sedgwickmuseum.bsky.social.
valuepast.hypotheses.org
Building Deep Time – Museum Architecture in Oxford, Vienna & Cambridge
Stefanie Jovanovic-Kruspel shows us natural history museum buildings which make deep time visible in stone and space.
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Reposted by Dr. Advait M Jukar, FLS
The Public Domain Review @publicdomainrev.bsky.social · 25/05/2026
Images from Eugène von Guérard's Australian Landscapes, a series of 24 tinted lithographs published in 1867. More here: publicdomainreview.org/collection/e…
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Dr. Advait M Jukar, FLS @amjukar.bsky.social · 23/05/2026
It’s true!
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Kathryn Sokolowski @kathryn-soko.bsky.social · 22/05/2026
Calling all Quaternary paleontologists- Abstracts submissions are open for #SVP2026 annual meeting! My labmate Alyssa McGrath, and I are convening a symposium “Local and Global Drivers of Late Quaternary Extinctions” this fall in Cleveland. Submit your abstract and join us! 🦴🦣🔬
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Tori Herridge @toriherridge.bsky.social · 11/05/2026
WE DID IT! 🪾61 taxa (no prokaryotes!) 🚢 a building, a boat & a gritter truck 🎬 a film, a song, & an all-night rave 🦜 a kākāpō, a highland coo & a wise indian bull 🐈 a kitten, a lamb, a foal & an alpaca 🏞️ a pond, a nature trail, & a dragon house 🏫 too many school houses to mention & more…
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 10/05/2026
E.M. Niespolo, et al. (2026) Improved 14C and novel 230Th/U burial dating of Australian megafaunal avian eggshells: implications for the extinction of Genyornis and early human arrival to Sahul Quaternary Science Reviews 385: 110038 www.sciencedirect.com/science/arti...
doi.org
Redirecting
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 10/05/2026
The variability of giraffe skull morphology - Kargopoulos - Journal of Anatomy - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The variability of giraffe skull morphology
What does giraffe skull shape tell us about their development and evolution?
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Tori Herridge @toriherridge.bsky.social · 07/05/2026
An ode to the Pleistocene hippopotamus of Great Britain, by Hugh Falconer [read today in honour of Andy Currant]: Place me on Grifton’s marbled steep, Where nothing save the waves and I, May hear our mutual murmurs sweep There — pig-like — let me grunt and die, The last of Hip-po-po-ta-mi.
A photograph, taken by the post author, of a poem handwritten by Hugh Falconer, from the archives of Falconer Museum, Forres.

The poem reads:

“Place me on Grifton’s marbled steep,
“Where nothing save the waves and I,
“May hear our mutual murmurs sweep
“There — pig-like — let me grunt and die,
“The last of Hip-po-po-ta-mi.”
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Dr Nicholas Freymueller @smilodontology.bsky.social · 28/04/2026
🐋🐋🐋 MASSIVE WHALE PAPER ALERT!!! 🐋🐋🐋 Our new paper "Historic logbooks reveal spatial footprints of commercial whaling" has just been published in @pnas.org! Come see how we use centuries-old #logbooks to understand population recovery patterns a century after Arctic #whaling. Details below 👇 1/🐋
Artwork of bowhead whales swimming in ice.

"Icebreakers". 1998. 72" x 48" original acrylic on masonite painting
of bowhead whales, on display at the Fisheries and Oceans Canada (DFO) in Yellowknife, NWT. Image credit: Christopher Walker (artist).
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Dr Nicholas Freymueller @smilodontology.bsky.social · 28/04/2026
Our paper can be downloaded here: www.pnas.org/doi/10.1073/... If you are paywalled, please email me (via my Adelaide University Researcher Profile) for a copy. We've also been reached out to by some serious media outlets, so expect a lot more buzz featuring our work in the coming days/weeks. 🐋/🐋
pnas.org
Historic logbooks reveal spatial footprints of commercial whaling | PNAS
Commercial harvesting of bowhead whales (Balaena mysticetus), primarily by British and American whalers during the late-1700s to early-1900s, nearl...
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Brian J. Enquist @bjenquist.bsky.social · 27/04/2026
"The return of equids and several sizes of bovids to New World vegetation was the Spanish gift to paleoecology" - Janzen 1986 www.jstor.org/stable/20970...
jstor.org
Chihuahuan Desert Nopaleras: Defaunated Big Mammal Vegetation on JSTOR
D. H. Janzen, Chihuahuan Desert Nopaleras: Defaunated Big Mammal Vegetation, Annual Review of Ecology and Systematics, Vol. 17 (1986), pp. 595-636
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 27/04/2026
Waqas, M., Weppe, R., Lazzari, V. et al. A basal representative of Cetacea from the Eocene of India. Nat Ecol Evol (2026). doi.org/10.1038/s415...
doi.org
A basal representative of Cetacea from the Eocene of India - Nature Ecology & Evolution
The authors report Kalakocetus aurorae, a new fossil species from India, which is phylogenetically recovered as the most basal member of Cetacea and which bridges a dental morphological gap between ce...
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Dr. Advait M Jukar, FLS @amjukar.bsky.social · 07/04/2026
Oh look, I’m a dinosaur paleontologist now 😁 www.tandfonline.com/doi/full/10....
tandfonline.com
A new turiasaur (Dinosauria, Eusauropoda) specimen from the Middle Jurassic of India
Turiasaurs are large-bodied eusauropods found in Early Jurassic to Early Cretaceous deposits across Gondwana and Laurasia. However, their early history is poorly known. Here, we report a lower-midd...
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 05/04/2026
Sanchez, G., Fernández-Álvarez, F.Á., Bernal, A. et al. Rapid mid-Cretaceous diversification of squid and cuttlefish preceded radiation into coastal niches. Nat Ecol Evol (2026). doi.org/10.1038/s415...
doi.org
Rapid mid-Cretaceous diversification of squid and cuttlefish preceded radiation into coastal niches - Nature Ecology & Evolution
Phylogenomic analyses of newly sequenced and published decapodiform cephalopods separate open-ocean and coastal shallow-water clades, following rapid cladogenesis from the mid-Cretaceous.
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Biodiversity Pics @biodiversitypix.bsky.social · 05/04/2026
🦣 The Mastodon giganteus of North America /. Boston: J. Wilson, 1852.. [Source]
Illustration of the underside view of a Mastodon Giganteus skull, showing detailed molar teeth and large eye sockets. The skull features thick bone structure with pronounced ridges and cavities, highlighting its prehistoric anatomy. This 1852 plate emphasizes dental patterns and cranial form characteristic of the extinct North American mastodon species.
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 05/04/2026
D. Stefanelli, M. Marino, B. Mecozzi, R. Sardella, A. Zazzera, and M.P. Ferretti (2026) Reassessing diagnostic postcranial traits in Pleistocene elephants: evidence from Palaeoloxodon antiquus and Mammuthus in Italy Acta Palaeontologica Polonica 71(1): 155-171 www.app.pan.pl/article/item...
app.pan.pl
Reassessing diagnostic postcranial traits in Pleistocene elephants: evidence from <em>Palaeoloxodon antiquus</em> and <em>Mammuthus</em> in Italy - Acta Palaeontologica Polonica
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 05/04/2026
Decoupled phenotypic constraints framed by respiratory adaptation in the rise of land vertebrates | Science Advances www.science.org/doi/10.1126/...
science.org
Decoupled phenotypic constraints framed by respiratory adaptation in the rise of land vertebrates
Macroevolutionary models show that rib-based breathing released constraints on body size and cranial evolution in early amniotes.
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Reposted by Dr. Advait M Jukar, FLS
Spencer Wells @spwells.bsky.social · 03/04/2026
New Radiocarbon Dates Push Mohenjo-daro Back to 3300 BC- Rivaling the Earliest Cities of Egypt and Mesopotamia ⛏️🇵🇰 arkeonews.net/new-radiocar...
arkeonews.net
New Radiocarbon Dates Push Mohenjo-daro Back to 3300 BC- Rivaling the Earliest Cities of Egypt and Mesopotamia - Arkeonews
New excavations and radiocarbon dates reveal that Mohenjo-daro’s origins extend back to 3300 BC, reshaping the timeline of the Indus Valley
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Reposted by Dr. Advait M Jukar, FLS
Thomas R. Holtz, Jr. @arctomet.bsky.social · 25/03/2026
Rocks, Fossils, and Ecology: Understanding How Time Is Sampled in the Fossil Record - www.annualreviews.org/content/jour...
annualreviews.org
Rocks, Fossils, and Ecology: Understanding How Time Is Sampled in the Fossil Record
The geological record provides us with absolute ages of past events and organisms, but it also contains information about what occurred within time intervals ranging from seconds to eons. Within this ...
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