iiinova — where your digital self keeps evolving

Reposted by Zarley Rebholz

PLOS Biology @plosbiology.org · 04/11/2025

#Haplodiploid inheritance is found in all species of #Hymenoptera. @mwbstr.bsky.social &co map the #sex determining #gene of the red mason #bee to the ANTSR gene region, suggesting a shared, ancient origin of #SexDetermination in bees & ants >150 Mya ago @plosbiology.org 🧪 plos.io/47COEtH

Complementary sex determination (CSD) in bees and ants. Top left: Single-locus CSD is likely to be the predominant mode of sex determination in Hymenoptera. CSD loci have been identified in two species: the honeybee Apis mellifera and the invasive ant Linepithema humile. The tree shows evolutionary relationships between these species and Osmia bicornis, the main subject of this study. The origin of Hymenoptera is estimated as 386 million years ago and the common ancestor of Apoidea and Formicoidea is estimated as 153 million years ago. Top right: Under single-locus CSD, females are heterozygous at the CSD locus, whereas males are haploid and therefore hemizygous. A large number of CSD alleles are expected to segregate in outbred populations. A small proportion of homozygotes at the CSD locus are produced by chance, when parents share an allele, which results in the production of sterile diploid males. Middle: An O. bicornis nest consists of a row of cocoons in a tube. The mother lays fertilized diploid eggs deepest in the nest and unfertilized haploid eggs closer to the entrance. Eggs develop into adults inside cocoons. Diploid eggs typically develop into females whereas haploid eggs become male. A small proportion of diploids that are homozygous at the CSD locus develop into diploid males, which occur amongst females and are larger than haploid males. Bottom: A male and female red mason bee mating. Photo by Marie Louise Huskens.

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Kathy Darragh @kdarragh.bsky.social · 31/10/2025

Darragh lab ready for Halloween! @zar-rebholz.bsky.social

Three people dressed in Halloween costumes as a pupa, butterfly, and caterpillar

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Alex Wild @alexwild.bsky.social · 01/09/2025

If you know North American ants, you'll know exactly what this scene smells like.

Macro photo of several plump, shiny orange ants with small black eyes standing among a dozen large white segmented grubs in a soil ant nest chamber.

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Zarley Rebholz @zar-rebholz.bsky.social · 17/08/2025

After a long series of flights from Chicago, I am happy to announce that I am standing at THE world famous, Seagull Pit, of Christchurch, New Zealand maps.app.goo.gl/3MXMLMkZvhkV...

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Zarley Rebholz @zar-rebholz.bsky.social · 28/07/2025

*thicc* cave cricket spotted in Mammoth Cave NP last weekend (plus a shot of its many friends...or enemies?). Look at that ovipositor #bugsky

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Zarley Rebholz @zar-rebholz.bsky.social · 14/07/2025

Tiny native Carolina mantis on my pepper plant this morning #bugsky

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Alex Wild @alexwild.bsky.social · 09/07/2025

The thing about entomology is, there are always weirder bugs than anything you could imagine on your own. Here's Cysteodemus wislizeni, a blister beetle from west Texas.

Photograph of a metallic blue/green beetle with a very spider-like body, a huge fake "abdomen" that is swollen and dented with even pits over its bulbous surface. It is otherwise ant-like, standing on a pure white stylized background.

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Alexandria Ocasio-Cortez @aoc.bsky.social · 03/07/2025

I don’t think anyone is prepared for what they just did w/ ICE. This is not a simple budget increase. It is an explosion - making ICE bigger than the FBI, US Bureau of Prisons, DEA,& others combined. It is setting up to make what’s happening now look like child’s play. And people are disappearing.

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Rebecca Pompano @pompanolab.bsky.social · 29/06/2025

It seems that only the science community is noticing that NIH and NSF budgets are cut 40% and 55% in the budget bill, respectively. If you live in Maine, West Va, Pennsylvania, Alabama, or Louisiana, CALL YOUR SENATOR as they could make a difference. See below. prospect.org/politics/202...

prospect.org

Will the Senate Save NIH?

Rescuing biomedical research is every bit as important as saving Medicaid.

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Reposted by Zarley Rebholz

Pen Insole @birdsblooms.bsky.social · 28/06/2025

The six spot burnets are out in numbers. Proper stunners #mothsmatter #insectweek

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Zarley Rebholz @zar-rebholz.bsky.social · 28/06/2025

Great day for stink: Wally, the corpse flower in the Indiana University Bloomington Biology greenhouse, bloomed today

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Zarley Rebholz @zar-rebholz.bsky.social · 27/06/2025

🚨🚨the corpse flower at IU Biology Building is probably going to bloom today, this is not a drill🚨🚨😬

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Yanis Varoufakis @yanisvaroufakis.bsky.social · 13/06/2025

Against Technofeudal Education - Pillars For Protecting Our "Core Infrastructure" From OpenAI theamericanvandal.substack.com/p/against-te...

theamericanvandal.substack.com

Against Technofeudal Education

Pillars For Protecting Our "Core Infrastructure" From OpenAI

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Kathy Darragh @kdarragh.bsky.social · 21/06/2025

Come here me talk at #Evol2025 about butterfly chemical evolution today (Saturday) at 3pm in room Athens AB (Parallel Evolution I). Stay for Zarley Rebholz on chemical convergence between plants and ladybirds!

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Eric Topol @erictopol.bsky.social · 05/06/2025

He's right. "Nothing short of devastating" By @holdenthorp.bsky.social @science.org www.science.org/doi/10.1126/...

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Daniel Kronauer @danielkronauer.bsky.social · 21/04/2025

Each spring, a hidden spectacle unfolds when subterranean citronella ants (Lasius subgenus Acanthomyops) bring their mutualistic mealybugs (the large fluffy white thing) up under rocks to warm up. Here, the prolific mealybugs produce vast numbers of nymphs (the small purple things).

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Reposted by Zarley Rebholz

New Phytologist @newphyt.bsky.social · 20/04/2025

#TansleyInsight: In the #nectar, there are answers: exploring the intersection of colored nectars and reactive #oxygen species in manipulating #pollinator behavior Evin Magner, Rahul Roy, Adrian Hegeman & Clay Carter 👇 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... #LatestIssue #PlantScience

Figure 1: Colored nectar diversity, pigment synthesis, functions, and reactive oxygen species (ROS) involvement. Panels show the relationship between nectar ROS and coloration.

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Zarley Rebholz @zar-rebholz.bsky.social · 18/04/2025

[Dutch tilt to indicate my descent into madness]

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Jacquelyn Gill @jacquelyngill.bsky.social · 17/04/2025

Call them what they are: robber barons. Billionaires are destroying the federal government so they can profit off deregulation and privatization. They're stealing from us only to sell it back as AI. And just like in the Gilded Age, they're blaming everything on immigrants, instead of class warfare.

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Carl T. Bergstrom @carlbergstrom.com · 15/04/2025

As a biologist, I'm appalled at pride the White House takes in willful ignorance. In yesterday's executive order about NPR and PBS, their first example of "the trash that passes for `news' at NPR and PBS" is the statement that "banana slugs are hermaphrodites." But this is unequivocal fact.

whitehouse.gov

The NPR, PBS Grift Has Ripped Us Off for Too Long

For years, American taxpayers have been on the hook for subsidizing National Public Radio (NPR) and the Public Broadcasting Service (PBS), which spread

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Zarley Rebholz @zar-rebholz.bsky.social · 15/04/2025

Zebra swallowtail, Eurytides marcellus. If you see one these dudes, it is a good sign that pawpaw trees are near by -- their larvae feed exclusively on the leaves of pawpaw species, and are chemically defended by sequestered acetogenins from the host plant. #bugsky

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Ethan Kocak @ethankocak.com · 08/04/2025

I say this every time de-extinction comes up: it makes no sense to devote science to bringing back extinct animals when we can’t be bothered to keep extant ones alive in the first place.

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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 24/03/2025

Beetle sighted 👀 Brachiacantha lady beetle. Halloween is year round for them. Respect

Shiny black lady beetle with 4 orange patchex on the elytra, 2 on the head and between the eyes. Running along charred pine bark

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Jen Cross @jencross.bsky.social · 17/03/2025

Here are some lovely green beetles for St Patrick's Day. ☘️ Thistle Tortoise Beetle (Cassida rubiginosa) Pennsylvania; (Dircema sp.) Ecuador; (Tribe Doryphorini) Ecuador; (Platycoelia sp.) Ecuador

A flat green beetle with a pair of small eyes peeking out from under the pronotum and a pair of antennae emerging at the same spot. Two cute beetle feet can also be seen reaching out from under the pronotum. It is walking around on a plant.

A snazzy beetle with dark green elytra edged in yellow. It is standing on a leaf.

A bright green beetle with gold antennae. It is clinging to a plant stalk and has a fruit fly sitting on its back.

A light green beetle clinging to the bark of a tree.

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🔬Djigr🦖- D. Dabir-Moghaddam @djigr.bsky.social · 13/03/2025

May I suggest additional roaches for the day you want to explore their wonderful world? And one of my fave articles: www.smithsonianmag.com/science-natu...

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Hervé Sauquet @hsauquet.bsky.social · 12/03/2025

Excited to see this out!! In this thought-provoking review led by @davidperis.bsky.social and Ricardo Pérez-de la Fuente we further demonstrate that insect #pollination was once widespread among #gymnosperms and existed long before the origin of #angiosperms onlinelibrary.wiley.com/doi/full/10....

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Zarley Rebholz @zar-rebholz.bsky.social · 13/03/2025

Lasius claviger, the small yellow ant AKA "citronella ant" --This species is a social parasite -- queens establish new colonies taking over existing ant colonies. A hypertrophied mandibular gland in workers is filled with huge amounts of citrus-smelling terpenes used as an alarm pheromone #bugsky

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Zarley Rebholz @zar-rebholz.bsky.social · 12/03/2025

Sun's out, bugs out (after cruelly disturbing their home, a rock) -- Reticulitermes flavipes workers and soldier

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Zarley Rebholz @zar-rebholz.bsky.social · 07/03/2025

"Cutting off fundamental, curiosity-driven science is like eating the seed corn. We may have a little more to eat next winter, but what will we plant so we and our children will have enough to get through the winters to come?" - Carl Sagan #standupforscience2025 #HoosierSky

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Pro-Democracy Indiana Resister 🇺🇸 🔄 🆘 🟦 @woodenstares.bsky.social · 26/02/2025

Indianapolis STAND UP FOR SCIENCE MARCH 7, 2025 Indiana Statehouse South Lawn 12-2 #Hoosiersky

Indianapolis
STAND UP FOR SCIENCE
2025
MARCH 7, 2025
Indiana Statehouse
South Lawn
12-2 PM
SCIENCE
IS FOR
EVERYONE
Find your local rally site and other ways to get involved:
standupforscience2025.org

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Kathy Darragh @kdarragh.bsky.social · 25/02/2025

Convergent floral scent loss following transition to hummingbird pollination in spiral gingers (Costus). I had so much fun on this project with @kathleenmkay.bsky.social and Santiago Ramirez and am thrilled to see it published now in @MolBioEvol! academic.oup.com/mbe/article/...

Flowers from two species of spiral ginger (Costus). On the left a bee-pollinated species, and on the right a hummingbird-pollinated species.

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Reposted by Zarley Rebholz

Slavoj Žižek @slavojiek.bsky.social · 05/10/2023

the artist is dead, long live the theater

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