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Allan Carrillo-Baltodano

@allancarbal.bsky.social

1.3K followers 490 following 110 posts

Developmental biologist interested in marine embryos and larvae; postdoc at Queen Mary University of London; tico 🇨🇷 in London 🏴󠁧󠁢󠁥󠁮󠁧󠁿; #embryo2019

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Allan Carrillo-Baltodano @allancarbal.bsky.social · Jun 2

It's finally here! Great start of the summer. We got our latest preprint from @chemamd.bsky.social in @qmulsbbs.bsky.social @qmulse.bsky.social, showing evidence of developmental system drift in the specification of dorsoventral (belly vs back) axis in annelids 🪱🪱🪱
#DevBio #EvoDevo

Image shows larvae of four different species of marine annelid worms, stained for muscle (magenta) and cilia (yellow). All with lateral views, with the mouth towards the left, and the future head pointing up. Images are to scale.

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Reposted by Allan Carrillo-Baltodano

Lisa @tuexplorer1.bsky.social · 9h

Swima eating. 4700-4800m I heard them say a worm person says this is new. I have seen swima launch off the seafloor many times, but I have never seen them eating anything. They usually get spooked before the ROV can settle down. @nautiluslive.org dive L1009 #CookIslands #MarineLife

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Allan Carrillo-Baltodano @allancarbal.bsky.social · 11m

#WormWednesday 🌈🪱

cambrian epic wet animal @dinoserious.bsky.social · 3h

#invertober 14, bobbit worm! rainbow edition!!

#invertober2025

color block art of a bobbit worm with its long body looped and coiled across a vertically long canvas. its head, at the bottom, has its mandibles and antennae flared. it is colored in a bright rainbow gradient across its whole body, and there are lines of emanata coming from its mouth

Reposted by Allan Carrillo-Baltodano

Luther Wells @ultraluther.bsky.social · 12h

#invertober2025 7-14
Bobbit Worms and Scaly Foot Gastropoda are some of my fav invertebrates, but I also do enjoy the classic worm.
#sciart #art

Digital, stylized drawings of a Scaly Foot Gastropod, Bee-Killer Robber Fly, Flamboyant Cuttlefish, Common Earthworm, Dark Fishing Spider, Pacific Razor Clam, Banded Sugar Ant, and Bobbit Worm.

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Allan Carrillo-Baltodano @allancarbal.bsky.social · 15h

Very impressive early #WormWednesday 🤩🪱🪱🪱

Petra Korlević @petrathepostdoc.bsky.social · 17h

dang it bobbit progress video

Reposted by Allan Carrillo-Baltodano

Petra Korlević @petrathepostdoc.bsky.social · 17h

Day 13 #Invertober2025 - Bobbit worm (Eunice aphroditois) 😬

holy hell this thing took the most time out of any other #invertober critter i have ever drawn, partially because there are NO GOOD REFS except for its face

#SciArt #invertebrates

semi-realistic drawing of a bobbit worm, a very segmented deep sea worm with a massive jaw at the front and a very holographic sparkly body with two little leg like structures at each segment, on a black background.

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Reposted by Allan Carrillo-Baltodano

Chris Gug @gugunderwater.bsky.social · 18h

I slowed down this vid in the beginning, but let it get to its actual real speed - crazy!
Admittedly, I kept wondering how this #polychaete #worm would be in a marinara sauce, covered in pecorino romano🤤
Shot in #Okinawa.
#marineworm #polychaeteworm

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Allan Carrillo-Baltodano @allancarbal.bsky.social · 18h

Early #WormWednesday

Helen Whistberry @whistberry.bsky.social · 19h

Happy #Invertober day 14!

Bobbit or sand striker worm (Eunice aphroditois)

This one was a bit terrifying-looking, so I went in a more abstract direction 😂

#Invertober2025

Drawing in white ink against a dull blue background of the head and upper body of a worm with spiky protrusions on head and sides. It is drawn in an almost abstract style to emphasize shape and pattern rather than being strictly realistic.

Reposted by Allan Carrillo-Baltodano

Society for Developmental Biology @socdevbio.bsky.social · 1d

✴️Sea urchins have illuminated fertilization 🧫, early cleavage divisions 🔬, and gene regulation in embryonic patterning 🧬. A classic marine model that shaped our understanding of cell fate and axis formation. 📸 Image by Laurent Formery #ModelMonday #DevBio

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Allan Carrillo-Baltodano @allancarbal.bsky.social · 1d

You can consider drawing the mitraria larva of Owenia. The prettiest of them all! 🪱🪱🪱

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Reposted by Allan Carrillo-Baltodano

Huisken lab @huiskenlab.bsky.social · 1d

Attend the talk “From ciliary beating to muscular locomotion: Developmental origins of nervous systems in the annelid Platynereis dumerilii” in the “neural circuit evolution” symposium presented by @metteh-thorsager.bsky.social

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Reposted by Allan Carrillo-Baltodano

CharrierLab @brownalgaedev.bsky.social · 3d

📣 SBIS, a new vital fluorescent probe for live imaging of #brownalgae #kelp in 4D. Just published in J. Cell Science by the Charrier team at the @igflyon.bsky.social. Download PDF on our team webpage here ➡️ shorturl.at/H5A9p
with first author Marie Zilliox featured here ➡️ shorturl.at/AMMoH

Developping Fucus embryo labelled with the orange fluorescent probe SBIS (autofluorescent chloroplasts in red).

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Reposted by Allan Carrillo-Baltodano

NadineRandel @nadinerandel.bsky.social · 1d

Excited to share that my latest paper is out in Open Biology!
It explores how late larval development allocates resources depending on the food source. royalsocietypublishing.org/doi/full/10....

Effects of food availability on larval development during ontogenetic niche shift in a marine annelid | Open Biology

Many marine invertebrates have a biphasic life cycle with a free-swimming larva and a bottom-dwelling adult. The transition from a planktonic to a benthic lifestyle is a significant step in the animal’s life history, highly regulated and influenced by ...

royalsocietypublishing.org

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Reposted by Allan Carrillo-Baltodano

Petra Korlević @petrathepostdoc.bsky.social · 4d

Day 10 #Invertober2025 - Common earthworm (Lumbricus terrestris) 🪱

#SciArt #invertebrates

semi-realistic drawing of an earthworm, wiggly and soft pink, on a black background.

semi-realistic drawing of an earthworm, wiggly and soft pink, on a white background.

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Reposted by Allan Carrillo-Baltodano

feña Palominos @fishfena.bsky.social · 4d

🚨 🚨 Science alert on a #FluorescenceFriday; check my latest paper published in @genetics-gsa.bsky.social where I integrated comparative tissue-specific transcriptomics and speciation genomics to discover two novel craniofacial genes behind pupfish extreme jaw development! tinyurl.com/craniofacial...

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Reposted by Allan Carrillo-Baltodano

Michael Sars Centre @msarscentre.bsky.social · 4d

It was fantastic welcoming back Chema Martin @chemamd.bsky.social from @qmulsbbs.bsky.social at the Centre today 👏 He shared with us his latest work on spiralian larvae evolution, with fascinating insights on the timing of gene expression during development. Thank you for visiting us!

Chema Martin, wearing a dark blue sweater and green trousers, presents his work in front of a seated audience. Behind him, parts of a slide is visible on a screen. It shows a schematic of a planktonic larva.

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Reposted by Allan Carrillo-Baltodano

Filippo Nicolini 🧬 @filonico.bsky.social · 4d

Name one of your biggest fears as a biologist. I start: misspelling species names on public docs! Clearly it happens so often to ppl that NCBI includes misspelled names in its records. Hilarious.

Was so🤏close to publish Day 10 #invertober2025 (the common earthworm) with a typo💀 Lubrimcus terrestris

A vectorial digital drawing of an Lumbricus terrestris, known as the Common Earthworm, set against a pale blue background. The segmented worm is coiled into an S-shape. The rear end is a pale, slightly pinkish-tan color, while the front end, which includes the clitellum (the band used for reproduction), is a darker reddish-brown color. The clitellum itself is a distinct maroon/red band. The text "invertobter2025 - Day 10" is in the bottom right corner.

A screenshot of a search box within the NCBI BLAST interface. The user has typed "homo s" into the search field under a section labeled "Organism" The search box is returning several suggested results in red text, showing common misspellings of the scientific name for humans, Homo sapiens, along with the correct taxonomy ID:
· Homo sampiens (taxid:9606)
· Homo sapeins (taxid:9606)
· Homo sapian (taxid:9606)
· Homo sapians (taxid:9606)
· Homo sapien (taxid:9606)
· Homo sapience (taxid:9606)

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Reposted by Allan Carrillo-Baltodano

Charley Yen, PhD @eugeniecyen.bsky.social · 5d

Catch my talk tomorrow on all things nanopore and DNA methylation for sea turtle conservation! 🐢

QMUL Centre for Epigenetics @qmulepigenetics.bsky.social · 19d

Our next guest seminar is happening on Friday, October 10th at 3.30pm GMT in the QM Innovation Centre, Clark-Kennedy LT. This will be a joint seminar with Oxford Nanopore @nanoporetech.com
and QMUL. Please book your place here: nanoporetech.swoogo.com/QMUL_Epigene... or scan the QR code below.

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Reposted by Allan Carrillo-Baltodano

Nat Clarke @natclarke.bsky.social · 6d

🚨 My lab is hiring at all levels!

Interested in animal origins & evolutionary cell biology?

I'm recruiting a postdoc, PhD students & a research assistant to study the molecular evolution of cell adhesion using marine invertebrates + comparative genomics.

🔗: clarkelab.com/join/

Please repost!

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Reposted by Allan Carrillo-Baltodano

Alex de Mendoza @alexdemendoza.bsky.social · 6d

Thrilled to share that the lab has been awarded a @wellcometrust.bsky.social Discovery Award to keep exploring the evolution of 6-methyladenine #6mA in Eukaryotes. We'll open postdoc (3️⃣) and tech (1️⃣) positions to start in 2026, please share with candidates or reach out if you’d like to join us.

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Reposted by Allan Carrillo-Baltodano

Petra Korlević @petrathepostdoc.bsky.social · 7d

my nemesis progress video

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Allan Carrillo-Baltodano @allancarbal.bsky.social · 7d

Apply! Coolest lab, in the coolest city 💂🏽‍♀️🎡

#DevBio
#EvoDevo

Margarida Cardoso Moreira @margaridamcm.bsky.social · 7d

Interested in understanding how new cell types evolve? Consider joining our group for a PhD!

The Francis Crick Institute @crick.ac.uk · 7d

2026 PhD recruitment is now open.

As well as our main PhD recruitment, which is open to all, we are pleased to be offering scholarships for candidates of Black or mixed Black heritage. Learn more and apply on our website:

www.crick.ac.uk/careers-stud...

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Reposted by Allan Carrillo-Baltodano

James Briscoe @jamesbriscoe.bsky.social · 7d

Very sad news, John Gurdon has died.

A developmental biologist's developmental biologist, Nobel prize winner

His work is the foundation of much of today's dev & stem cell bio.

An inspiration to many, including me. Always asking questions & wanting the answers

www.magd.cam.ac.uk/news/profess...

Professor Sir John Gurdon FRS (1933-2025) | Magdalene College

Magdalene College is deeply saddened to announce the death of Professor Sir John Gurdon FRS, who served as Master of the College from 1995 to 2002.

www.magd.cam.ac.uk

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Reposted by Allan Carrillo-Baltodano

pikaole @pikaole.bsky.social · 10d

How to make Ghost Jellyfish

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Reposted by Allan Carrillo-Baltodano

Alexandre Jan @alexandrejan.bsky.social · 10d

Happy Ctenophore Day!
These glowing ocean drifters look like jellyfish but aren’t! They’re comb jellies, shimmering creatures that light up the sea with rows of beating cilia 💙🌈
Which species can you identify? 👀 Most are raised in @pawelburkhardt.bsky.social lab
#CtenophoreDay #CombJelly #Ctenophore

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Reposted by Allan Carrillo-Baltodano

bioRxiv Developmental Biology @biorxiv-devbio.bsky.social · 11d

Regeneration of distinct complex structures in the annelid Platynereis is partially based on common morphological, cellular, and molecular events https://www.biorxiv.org/content/10.1101/2025.10.03.680064v1

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