Happy #CtenophoreCtuesday! Have you ever wondered how a comb jelly propels itself in the water? They utilize a metachronal rhythm of beating cilia (located on comb plates), which appear like a moving wave! Credit to @kei-jokura.bsky.social. Read more in this original paper: doi.org/10.1016/j.cu... 🦑

Phylogeny, classification, and evolutionary history of Neogastropoda: doi.org/10.1093/zool... #evolution #phylogenetics #systematics #mollusca

ACORN WORM in fine form with distinct sediment poop spiral! 5700 m #okeanos #wormwednesday

This is a nicely inflated Pleurocystites squamous cystoid from the Ordovician Bobcaygeon formation near Brechin, Canada. Cystoids are echinoderms, related to starfish and sand dollars, but went extinct at the end of the Devonian. #FossilFriday

We 3D printed a copepod! Thanks for working on the model @felixjavier.bsky.social

The impacts of climate change & colonialism were among the key issues raised by the hundreds of Indigenous people gathered in Geneva. grist.org/global-indig...

As climate change threatens their lands, Indigenous nations demand more power at the UN

From the Arctic to the Pacific, Indigenous advocates say their voices are too often ignored at the United Nations and that must change.

grist.org

From ventilation to external and internal nutrient transport: The many powers of cilia in black corals🪸 Now revealed by @soerenahmerkamp.bsky.social, @godefroidmathilde.bsky.social et al @natureportfolio.nature.com mpi-bremen.de/en/Page6751.... www.nature.com/articles/s42... #IOWWarnemünde

Snagged this from FB. This may make some people uncomfortable but I think it highlights just how far we've come from what's natural, from our relationship to the Earth that sustains us and our beautiful relatives we share it with.

1st Nations Peoples have a message for separatist / colonialist #PartiQuébécois #BlocQuébécois trying to take their land. The land is “…going to stay right here with First Nations people. This is our country and we say what happens." www.cbc.ca/news/politic...

Alberta First Nations to replicate 'Rock the Vote' campaign in referendum | CBC News

First Nations leaders in Alberta are turning to a campaign that saw record on-reserve voter turnout in an effort to tip the scales against the separatist movement during October's provincial referendu...

cbc.ca

Université Laval, in Quebec City, is recruiting a professor to hold the FRQ Chair in Extinction & Paleoenvironments of Anticosti Island. Official announcement in French: www.rh.ulaval.ca/emplois-disp... Official posting in English: www.rh.ulaval.ca/emplois-disp...

My student Corinne Soucy led my labs 1st foray into paleo-community ecology, thanks to the extraordinary @ctrlalttim.com, Emily Beasley, @francisbanville.bsky.social, Juan Carlos Gutiérrez-Marco de la @ucm.es, Bertrand Lefebvre du @cnrs-insu.bsky.social. www.sciencedirect.com/science/arti...

A paleoecological trophic network model of the Early Ordovician Lower Fezouata Shale (Morocco) fossil fauna

The fauna of the Fezouata Shale, an Early Ordovician fossil Lagerstätte from Morocco, is transitional between the Cambrian and the Great Ordovician Bi…

sciencedirect.com

#BIODIVERSITY "The community that believes in the existence of #Bigfoot (or #Sasquatch) has a database of all the sightings, and it’s a dataset that’s perfectly suited to this exercise," says @ctrlalttim.com. nouvelles.umontreal.ca/en/article/2...

Climate change: the Bigfoot connection

Using data from sightings of the mythical creature, UdeM biologist Timothée Poisot adapts a machine-learning method to map the uncertainty of biodiversity scenarios.

nouvelles.umontreal.ca

This pulsing orb is the advanced 1 mm larva of a sea angel ✨🌊🔬. Kattegat, The North Sea. Sea angels are my fav mollusks, and I’ve always been dreaming about seeing an advanced larva.

New, interesting, analysis of animal complexity. Lead by @frommlab.bsky.social and Kevin Peterson. Genomic Contingence Beneath Ecological Convergence: The Tempo and Mode of Gene Loss in Parasitic Bilaterians academic.oup.com/evolut/artic...

Genomic Contingence Beneath Ecological Convergence: The Tempo and Mode of Gene Loss in Parasitic Bilaterians

Abstract. Parasitism has independently evolved hundreds of times among metazoans. Nonetheless, parasites have explored only a limited range of ecologies, a

academic.oup.com

A lovely article on the @biodivlibrary.bsky.social in the Guardian! www.theguardian.com/environment/...

A bonanza for fans of the natural world: the digital library sharing 64m pages of scientific knowledge with everyone

The Biodiversity Heritage Library is an invaluable online archive of historic texts on species living and lost supplied by the world’s leading museums and universities. Now its future is in doubt

theguardian.com

A recent account of my research in the NYT! by @megadarren.bsky.social ! #echinoday www.nytimes.com/2023/08/04/s...

New Antarctic Starfish Are Doting Parents and Vicious Predators (Published 2023)

A close examination of a collection of starfish in the Smithsonian revealed even more starfish inside those starfish.

nytimes.com

#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...

Ontoecogenophyloconstraints? The chaos of constraint terminology

The world of evolutionary biology today is being bombarded with all kinds of possible constraints to the process of natural selection. Are we witnessing the end of the neodarwinistic theory of evoluti...

cell.com

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....

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...

doi.org

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

Sam Andrews@oceanoculus.com · 4w ago

Ocean data has a bit of a communication problem. We're producing more data than ever, thanks to innovations in satellites, autonomous vehicles, environmental DNA, acoustic monitoring, and more. It's extraordinary what we can now observe about the ocean. Image credit: Gerd Altmann (Pixabay)

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....

A global assessment of abyssal–hadal vermiform lebensspuren: Functional consistency with depth

Lebensspuren—sedimentary traces produced by benthic organisms—are widespread on deep-sea floors but remain infrequently reported from abyssal (~ 3000–6000) and hadal (> 6000 m) environments. Here, we...

aslopubs.onlinelibrary.wiley.com

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...

Indigenous cultural practices are a climate solution, report finds

Indigenous lands are crucial for climate mitigation and resilience. Research shows their health is a direct result of Indigenous stewardship.

grist.org

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...

Terrains | Johnny Cash et les « Indiens »

Notre collaboratrice raconte un pan méconnu de l’histoire du musicien Johnny Cash, qui a longtemps milité contre les injustices à l’égard des Autochtones. Un combat qui lui a valu d’être adopté par le...

lapresse.ca

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...

Livre bleu du PQ: un Québec indépendant aurait une armée

Paul St-Pierre Plamondon présente le livre bleu comme « un premier dialogue avec le peuple québécois ».

ici.radio-canada.ca

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

Paleobiology Research Group at OU@oupaleobiology.bsky.social · last mo.

OU paleontologists @leptaena.bsky.social and @daveyfwright.bsky.social make one-in-a-million fossil discovery

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.

A blastoporal organizer in a ctenophore - Nature

Experiments using the comb jelly Mnemiopsis leidyi and the sea anemone Nematostella vectensis reveal that the emergence of a core signalling pathway may have been a key innovation enabling the transit...

nature.com

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...

The Seamstress Who Solved the Ancient Mystery of the Argonaut, Pioneered the Aquarium, and Laid the Groundwork for the Study of Octopus Intelligence

“I armed myself with patience and courage, and only after several months managed to dissolve my doubts and see my research crowned with happy confirmation.”

themarginalian.org