#Evolution is subject to various kinds of #constraints. This superbly titled article addresses the poor & inconsistent use of constraint terminology. Published in 1991, it's just as relevant today. www.cell.com/action/showP...

C.H. Waddington's lasting achievements in development and evolution Jonathan B. L. Bard examines some of Waddington's research papers that show why he is one of the few pre-molecular-age developmental biologists still widely remembered and how they remain significant. doi.org/10.1242/dev....

Read the thread for great tips on communicating your science to the public.

Come work with me at Earth Sciences New Zealand! Deep-sea benthic ecologist position available: careers.sciencenewzealand.org/jobdetails?a... Plenty of opportunities for voyages across the Pacific and Southern oceans. #ecology #ecologyjobs #sciencejobs #deepsea #marinebiology

#Lebensspuren - sedimentary traces - from acorn worms, echiuran worms, polynoid scale worms, & sabellid-like annelids in the deep-sea Hadal zone. aslopubs.onlinelibrary.wiley.com/doi/full/10....

Tubulipora liliacea is one of the more common Tubulipora species in Norway. It forms beautiful, upright lobes with zooids in connate rows, and living colonies are often light purple/violet-colored! Photo: Maria Grankvist Buhaug #Bryozoa #NorDigBryo

Indigenous cultural practices are a climate solution, report finds grist.org/indigenous/i...

Johnny Cash milite contre les injustices à l’égard des #Autochtones. Un rappel important que son travail n'est pas terminé. Merci @isabellepicard.bsky.social www.lapresse.ca/contexte/chr...

Comment savez-vous que le Livre bleu du chef péquiste Paul St-Pierre #Plamondon est un document colonialiste ? Il l'a publié avant de consulter les Premières Nations du Québec. #PartiQuébécois #colonialisme ici.radio-canada.ca/nouvelle/226...

Soft tissue preservation in a crinoïdes fossil. Montréal’s Musée de paléontologie et de l’évolution.

Buried in the details of acorn worm anatomy. Carrying the weight of history, science & sediments. I enjoy & despise it. There's no science as personal or puzzling as taxonomy. It’s 5-dimensional & composed of thousands of imperfectly matched pieces. Balanoglossus occidentalis Ritter 1902 nomen nudum

Velvet worm under SEM! #onychophora #peripatidae #peripatus

What is the evolutionary origin of the organizer? New work from @kremnyovs.bsky.social, @tclebedeva.bsky.social & Hejnol Lab @uni-jena.de reports the blastopore lip of the #ctenophore Mnemiopsis leidyi, a member of the evolutionary sister group to all other metazoans, exhibits organizer activity.

Jeanne Villepreux-Power: Having for several years devoted to the natural sciences the hours that remained to me free from my domestic affairs… the octopus of the Argonauta transfixed my attention above the rest… www.themarginalian.org/2026/06/14/j...

It's very difficult to work out the relationships between spiral cleaving phyla. With interesting implications for their origins and the interpretation of Cambrian fossils. Work by @anaserrasilva.bsky.social. Supported by @leverhulme.ac.uk.

Aplacophoran molluscs are a spiky, early-branching lineage that often resemble microscopic worms. Here’s a fun hot pink species (Helicoradomenia sp.) that we recently found at hydrothermal vents in the South Pacific! en.wikipedia.org/wiki/Helicor... #MolluscMonday #SnailsRising #NSFfunded

Position Alert! Come be a Curator of Crustacea at the Smithsonian National Museum of Natural History. trustcareers.si.edu/en/postings/...

Assistant Professor position in paleontology @uugeo.bsky.social 🤩 🐚 🌊 🧪 ⚒️

New paper out, led by Maddie Ess! "The effects of the Richmondian invasion on benthic invertebrate functional diversity during the Late Ordovician." www.frontiersin.org/journals/eco...

Interested in the physics that drives morphogenesis? Join us at the Journées de la Matière Condensée October 26 to 30 in Toulouse, France for our session on the physics of morphogenesis in living organisms. jmc2026.sciencesconf.org Talk applications are due May 30th. @sfp-physique.bsky.social

This article is AI CEO hyperbole. AI is not about to take over science. The AI tools for weather, protein folding, earth science & genome assembly are built on existing theory/ data and software. www.technologyreview.com/2026/05/22/1...

Our work on Trichoplax locomotion and mechanosensing capabilities is out now in @currentbiology.bsky.social. Congrats Marvin Leria & all co-authors! authors.elsevier.com/c/1n8Ig3QW8S...

A fossil nervous system meets modern neurobiology. We found that a living comb jelly preserves neural architecture remarkably similar to those inferred from Cambrian fossils over 500 million years old 🤩. www.biorxiv.org/content/10.6...

Are interacting species showing more similar responses to environmental predictors than expected by chance? Is this similarity protecting species pairs from interaction disruption under climate change? If you want to find out, join us for a fully funded Ph.D. with @epic-biodiversity.org 🌎🧪

Il est bon de rappeler que dire à une Canadienne autochtone qu'elle doit parler français (ou anglais) relève du colonialisme, tout comme l'expression « Québec mon pays ».

Ramirez-Guerrero et al. (2026-05, Journal of Paleontology)（オープンアクセス open access） 「ケベック州の上部オルドビス系から産出した，膜をもつクラゲ類のポリプ ― 正誤表」 Thecate medusozoan polyp from the Upper Ordovician of Québec–CORRIGENDUM doi.org/10.1017/jpa.... 系統関係の記述等について，タイトルを含め色々修正されています． The title has now been emended!

The deep sea is home to various parasitic nematodes, and for many of them, we don't know what they infect. Trophomera is a genus of nematodes which live >7000 m below sea level, where they infect amphipods, priapuplids, mussels, and even other nematodes 🧪 dailyparasite.blogspot.com/2016/04/trop...

There’s no topiary like acorn worm topiary. #Herbal #Hemichordata

A Postdoc position is available in the team at the IRCAN - Institute for Research on Cancer and Aging, Nice to work on the impressive stress response/resistance of the sea anemone Nematostella vectensis. emploi.cnrs.fr/Offres/CDD/U...

Our new paper on squid and cuttlefish evolution is out in @natecoevo.nature.com : www.nature.com/articles/s41... /1

It's a wrap for the 2026 Quebec #Indigenous Science Fair in La Tuque. The theme was 'Science in Action with 1st Peoples' & included 41 teams & 9 nations, illustrating the growing interest of 1st Nations & Inuit youth in science & technology. Thanks to our hosts, le Conseil de la Nation #Atikamekw!

The impacts of light on life keep surprising us. This time, we uncover significant links between light, reproductive onset and life span... Check out our new @univie.ac.at @awi.de @viennabiocenter.bsky.social study published in @pnas.org: doi.org/10.1073/pnas... [1/7]

Canada is a proud, bilingual nation. Our history and culture is shaped by the French language and the millions of Canadians who speak it every day. La Francophonie is a pillar of our national identity — one to be protected and celebrated across Canada.

Help! We're removing the aboral disk of the brittle star Amphipholis squamata in search of juveniles - they're brooders - and we're finding these hollow ossicle-like rods, arranged in sequence. What the heck are they? #ophiroid #echinoderm #calcite @echinoblog.bsky.social

The first and only #Indigenous clean-up of a Superfund site, my news to me good news for Mar 19 #EarthOptimism www.theguardian.com/environment/...

Equinox is Friday March 20 (tomorrow!) at: 0746 in Los Angeles, CA, USA 0946 in Minneapolis, MN, USA 1046 in Caracas, Venezuela & Havana, Cuba 1546 in Sokoto, Nigeria 1816 in Tehran, Iran Edwin Starr 'War, what is it good for, absolutely nothing!' www.youtube.com/watch?v=I-gO...

Looking for a #PhD project? The #DEEVA team (biom.obs-banyuls.fr/presentation...) proposes a PhD research project on the evolutionary modifications in the formation of the palps, the sensory and adhesive organ located at the anterior end of the #ascidian larvae.

Extraordinary new fossils from Newfoundland reveal an ancient mass extinction worse than the asteroid-driven calamity that killed the dinosaurs. #Paleontology #KotlinCrisis #FossilFriday 🧪🧪 New for @science.org

#Indigenous People leading the way, again...My news to me good news for Mar 15 #EarthOptimism www.hcn.org/issues/58-3/...

Neither machine nor organ: these Platynereis worms possess cells that function like a 3D printer! www.nature.com/articles/s41...

Absolute gut punch to learn this news of @dremmaljohnston.bsky.social www.nature.com/articles/s41... Goodbye friend. I'll always remember you for your easy, beautiful brilliance. You've been an inspiration. Thinking of your family and our shared friends everywhere today.

What happens when marine embryos are crowded instead of isolated? They become materials. Honored to write a @natphys.nature.com News & Views on excitable living solids discovered by Prof. Fakhri and colleagues at @mit.edu 😀 N&V: rdcu.be/e5gLm Paper: nature.com/articles/s41...

Postdoc Opening! 🚨 Thrilled to (belatedly!) share that I’ve received @hfspo.bsky.social grant in collaboration with @KatherinaPetrou "Plant-like solar tracking in a photosymbiotic animal." We are hiring a Postdoc to join the team @bristolbiosci.bsky.social! Apply👇 www.jobs.ac.uk/job/DQO766/r...

Yet again the same worm. Regular photo this time. I just finished turning the background black. :) The little “paws” are very cute, but the mouth is terrifying. #photography #macro #worm #onychophora

Great seminar on fish, ecosystem function, services & health. Thanks @helenyan.bsky.social for sharing your global & deep time perspectives.

Introducing a Clytia planula cell atlas, and demonstrating broad-level relations with medusa cells via another updated atlas. By @annaferraioli.bsky.social with @juliarmateu.bsky.social and collaborators in a project led by @rcply.bsky.social @biodev-vlfr.bsky.social www.biorxiv.org/content/10.6...

How do #sponges coordinate their bodies despite lacking neurons and true muscles? We show that sponges use monoamines to control water flow in their canals — reminiscent of how adrenaline regulates blood vessels. My PhD story, now on BioRxiv: www.biorxiv.org/content/10.6... #Evolution

Students are organizing against classical economic theory because it doesn’t align with their lived reality. Good stuff. #Biodiversity & #economics & #history & #power & access to #healthcare & #democracy & #equality are inseparable. www.theguardian.com/environment/...

Introducing the soft-bodied fossil Paleocanna tentaculum n. gen. n. sp., a tube-dwelling medusozoan. The first 3 authors are students.👏 www.cambridge.org/core/journal...

[New Paper] @currentbiology.bsky.social presents our population genomics study of the iconic Scaly-foot Snail: 125 genomes from 8 Indian Ocean hot vents! Deep currents drive South→North gene flow, while transform faults act as dispersal barriers. READ FOR FREE: authors.elsevier.com/c/1mbW73QW8S...