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Javier Lazaro - scientific illustration

@lazaroillustration.bsky.social
8.4K followers 6.9K following 639 posts

Scientific illustrator for research & publications Biologist (PhD) | former researcher Helping scientists communicate their work visually Illustrations for papers, books & posters Get in touch: lazaroillustration@gmail.com Web: www.lazaroillustration.com

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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 16h
Planing to make fine art prints of this one :) DM or email me if interested #scirt #bugsky #insects #entomology
Illustration of four cicadas in line pencil sketch style.
Available as fine art prints.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 05/10/2026
Last month's finding: Grifola frondosa (Maitake) 😎😎
Picture of maitake funghi (Grifola frondosa) on a chestnut trunk Picture of maitake funghi (Grifola frondosa) on a chestnut trunkPicture of maitake funghi (Grifola frondosa) on a chestnut trunk
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 29/09/2026
Really happy to share this one: a new guide for Gran Paradiso National Park, illustrated by me, about enjoying the park while respecting its wildlife and habitats. Free to download at the Park's site. Selected illustrations are also available as fine art prints — DM or email me if interested.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 22/09/2026
and here is the next one #sciart #bats
Illustration of a flying fox (Pteropus) hanging on a branch and eating fruit
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 18/09/2026
From yesterday's hike
Mountain landscape with lake at Orco Valley, Italian Alps.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 16/09/2026
And here a collection of drawings for the sparrow app. #sciart #birds
Illustrations of house sparrows representing different poses and behaviors. The following behaviors are depicted: grapple in air, displace, mating, threat, grapple on ground
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 09/09/2026
Let's continue with this one #bats #sciart
Illustration of a bat (Eonycteris speleaea) pollinating a flower
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 08/09/2026
I want to say (very proudly) that for this illustration, I used neuron images I took during my PhD project as visual references. #SciArt
Illustration of neuronsMicroscope photo of brain tissue stained with the Golgi method depicting a neuron. The reference scale bar is 50um.Microscope photo of brain tissue stained with the Golgi method depicting a few neurons. The reference scale bar is 50um.3D digital reconstruction of neuron. The reference scale bar is 50um.
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Reposted by Javier Lazaro - scientific illustration
canyonbirds.bsky.social @canyonbirds.bsky.social · 04/09/2026
#FossilFriday
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 02/09/2026
Art value lies in the process. Every piece of art has value because there is a process behind it. In my view, when the process is removed (as happens with generative AI) the value of the artwork is lost.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 01/09/2026
This week's insect sketch. Yes, another cicada :) I'll stop with cicadas for a while, I promise... #insects #bugsky #cicada #sciart
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 25/08/2026
Wow, I forgot: #Invertefest
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 25/08/2026
Another #cicada drawing. A larva this time. #sciart #insects #bugs #entomology
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 24/08/2026
Yesterday's hike. View of Gran Paradiso group from Colle della Crocetta
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 18/08/2026
Be ready for a lot of insect drawings over the next few months! #insects #entomology #sciart
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 11/08/2026
Very happy to announce that I've just started a promising collaboration with @batcon.org ! #bats #sciart
Line sketch of an Eonycteris bat feeding on a flower
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 09/08/2026
Working on a Minotaur Beetle (Typhaeus typhoeus) Those iconic prothoracic horns aren't just for show — males use them to lock horns and defend their deep underground burrows. Focusing on getting the thoracic sclerites and leg ornamentation right. #SciArt #Entomology #Insects #Coleoptera
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 04/08/2026
More anatomy sketching for this new baboon and eagle illustration. #sciart #sketch #drawing #art
Line sketches of eagles and details of claws, and a baboon skull
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Moisés Jauregui-Sanchez @moisesjauregui.bsky.social · 03/08/2026
Bajo nuestros pies viven los colémbolos globulares, seres de hasta 5 mm que habitaban la Tierra antes que los dinosaurios. Con una fúrcula que los dispara ante el peligro, reciclan nutrientes en el suelo y su cutícula inspira la biotecnología. Maestros de la supervivencia de 400 millones de años. 🪲
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 28/07/2026
Making a insect hotel from a wooden pallet #diy #insects #garden #howto #wood
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 21/07/2026
More sparrow illustrations, always for this same project. Adult male and female. #sciart #birds
Illustration of two house sparrows. Top, male; bottom, female.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 15/07/2026
Everyone should grow a vegetable garden
Photo of my vegetable garden
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 14/07/2026
Some of my illustrations included in a paper figure. #scart #birds
Paper graphs with drawings of gull and tern
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 07/07/2026
Sketching for a new commission #sciart #sketch #drawing
Line sketches of two baboons
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 03/07/2026
I love Equisetum and the strange visual effect that they create.
Path in a forest with undergrowth of horsetail (Equisetum). Photo taken at Orco Valley, Italy.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 30/06/2026
Concept for book cover. The book subject is about how the environment shapes brain connections and how animals adapt to the environment through behavior. The mammal species is the owl monkey. #sciart #art
Illustration of a nature scene with a family of owl monkeys and a grasshopper on a tree. Over the scene there are some neurons with their dendrites connecting the monkeys, grashopper and the tree fruits. The illustration represents the ecological interactions as neuron connections.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 25/06/2026
A beautiful visitor in my vegetable garden ☺️ #insects
Photo of a butterfly Mimas tiliae on a lettuce leave
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 23/06/2026
One of my illustrations has just been published in a new review in Biological Reviews: onlinelibrary.wiley.com/doi/full/10.... Always rewarding to see an illustration become part of the scientific literature. #SciArt #Illustration #AcademicPublishing #DiseaseEcology
Paper figure.
Figure caption: Breeding bird population size and mortality in the northwestern European Sandwich tern population during the 3 years since the HPAI H5N1 outbreak in 2022. Adult mortality is based on counts of dead birds found in colonies and along shorelines; chick mortality (C) is mostly estimated based on available reports of breeding success or estimates of chick deaths. The decline in
mortality from 2022 to 2023 is highlighted, and possible explanations are illustrated below. Either the virus, the host, or the
environment must have changed. Available evidence suggests that the virus did not alter its virulence or contagiousness, but rather
that host populations adapted through selective mortality and the build-up of immunity. Evidence for environmental effects is
mixed: seasonal factors, such as rising temperatures or increased ultraviolet exposure, may have played a role, and environmental
viral loads were likely reduced due to large-scale carcass removal adopted in 2023, and possibly also due to lower breeding bird
densities in some species (e.g. common terns).
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 21/06/2026
Meanwhile at Parco Nazionale Gran Paradiso...
Mountain landscape with a reflecting lake at Valle Orco, Italy
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 16/06/2026
A few more illustrations for the birding app. This first drawing: fighting males. #sciart #sparrows #appdesign #uiux #uidesign #mobiledesign
Illustration of two mail sparrows fighting
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Eduardo Norte 🪐 @edunorte.bsky.social · 10/06/2026
Jordi Labanda sobre la IA:
Una captura de pantalla con el siguiente texto: 

Al parecer alguien en Silicon Valley decidió que los humanos no somos de fiar. Porque nos equivocamos, tenemos crisis creativas, nos venimos abajo. En resumen, somos una calamidad, así que nada mejor que hacer ingeniería social y montar una inteligencia sintética que piense por nosotros para construir de una vez un mundo feliz. Pero, ay, abolir el error del proceso creativo es como querer enamorarse sin miedo a que te rompan el corazón o viajar sin moverse de casa. Técnicamente puede simularse pero el resultado es francamente triste. Quitarle al ser humano la necesidad de crear es dejar que la civilización se pegue un tiro en el pie. El arte nunca fue una cuestión de eficiencia, jamás tuvo sentido práctico. Nadie necesitaba pintar bisontes en una cueva para optimizar recursos ni escribir poesía para aumentar la productividad. Creamos porque estamos vivos y porque atravesar la existencia sin transformarla sería algo insoportable.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 09/06/2026
Illustration for the upcoming Alpine marmot ecology, behaviour and conservation congress. #sciart #mammals #art #science
Painting of three Alpine marmots, an adult and two juveniles.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 02/06/2026
Imagine losing up to 20% of your brain volume every winter and regrowing it again in spring… Some mammals do exactly that! A new review on Dehnel's phenomenon has just been published in Mammal Review, featuring two of my illustrations. 🧵1/3 #Mammalogy #Mammals onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Dehnel's Phenomenon in Mammals
Some small mammals, which remain active year-round, undergo reversible reductions in body size, braincase height, and the mass of internal organs, including the brain, from summer to winter. It is ca...
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 31/05/2026
Remember, technological advance does not necessarily equal progress.
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 29/05/2026
This is the best I've seen today
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 25/05/2026
Here is the final illustration of the sparrow flock. This will be used as homepage background for a mobile app. I will share more details when the app is released. #sciart #birds #art #app
Illustration of a group of sparrows perching on a shrub; most of birds are resting while two are fighting.
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GaboMJ @gabrielmj1.bsky.social · 23/05/2026
Los increíbles colores del sapo arlequín púrpura. Sus tonos intensos no son solo belleza; son una advertencia para los depredadores de que puede ser tóxico. En la naturaleza, los colores más llamativos suelen esconder los mayores peligros. 🐸✨
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💖 Birdhism Jen @birdhism.com · 15/05/2026
Striped cuckoo (Tapera naevia) chicks utilize specialized, cryptic plumage that mimics the texture and color of pinecones for camouflage. #birds
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Veeloxxy Bites @the-episiarch.bsky.social · 27/04/2026
I love it when parasites/parasitoids get funky and convoluted with their life cycles - as is the case with the parasitoid wasp genus Orasema which are parasitoid of ants 🐜🧪 hymenoptera.ucr.edu/sites/defaul...
Life cycle diagram of the Orasema parasitoid wasp, by University of California, Riverside.
Caption text reads:
"Wasps in the genus Orasema (family Eucharitidae) mate outside the nest. Females deposit eggs into vegetation using a special expanded ovipositor. Eggs are laid into leaves, bracts of flowers or even the peel of a banana. Eggs are often laid near to an extrafloral nectary (EFN). Ants pick up the hatched larvae (planidia) by feeding at the nectary, direct phoresy or by feeding on thrips with attached planidia. Ants carry the wasp larvae back to the nest where they are transferred to the ant larva. Planidia first attack the ant larva as internal parasitoids but then develop as external parasitoids of the ant pupa. After killing the ant pupa and leaving a living carcass, the wasp pupate and emerge in the nest. Specialized chemicals allow them to live with the ants for a short time, but they must leave the nest to meet their mates and start the cycle again."
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 26/04/2026
What a wonderful photo!
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auggie @autumndork.bsky.social · 11/04/2026
What I like best about the Artemis II photos is that it was taken by actual humans. An actual person had to frame it and manually adjust settings. It's their own artistic rendition of what they thought looked best at the time, something no probe, rover or unmanned spacecraft can take. it's art
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 06/04/2026
Hyena Clan. My proposal for the scientific illustration contest Illustraciencia. #sciart #mammals
Illustration of a Savana scene with a pack of hienas
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 24/03/2026
Beautiful birthday gifts... #bats #books
Book Bats of the World
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 21/03/2026
Working on some new art. Seems kind of psychedelic... but still scientific illustration! Could you guess what it is? #sciart
Work in progress on a Wacom tablet
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 18/03/2026
Some more octopus sketching for a current commission. It's so fun drawing octopus! I love their movement and their lose shapes #sciart #invertebrates #art
four line drawings of octopus
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 14/03/2026
Some shrews crawling around. Work in progress. I love shrews! #sciart #wip #art #mammals
Pencil sketches of shrews
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 12/03/2026
Turn your study species into detailed drawings. Get in touch: lazaroillustration@gmail.com
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 10/03/2026
Sketching octopus #sciart #octopus
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 08/03/2026
It's been a while since I last shared pics of my wild surroundings here at Gran Paradiso National Park
Winter mountain landscape with a few individuals of Alpine ibex
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Javier Lazaro - scientific illustration @lazaroillustration.bsky.social · 06/03/2026
High-quality wildlife and scientific illustrations for your research. Email me: lazaroillustration@gmail.com
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