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Posts by McGill Biology

Interpretation of paleocanna tentaculum.

Interpretation of paleocanna tentaculum.

Researchers studying 450-million-year-old fossils discovered about 50 km northeast of Quebec City have identified a new species of basal medusozoan: Paleocanna tentaculum, a soft-bodied, tube-shaped polyp with a ring of tentacles. Closely related to modern jellyfish.

Read more ➡️ mcgill.ca/x/5Ac

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Found: a new species of jellyfish, preserved in Paleozoic fossils Identified as Paleocanna tentaculum, the species is a rare find, as soft-bodied organisms do not usually preserve well, say scientists at UdeM and McGill University who discovered them.

nouvelles.umontreal.ca/en/article/2...

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Photo of the Redpath Museum at McGill University. Students are sitting in the shady grass in front of it.

Photo of the Redpath Museum at McGill University. Students are sitting in the shady grass in front of it.

McGill has received a 2026 Campus Sustainability Achievement Award from AASHE for its work in climate resilience. 🌱

The award recognizes its Climate Risk Assessment, helping guide how McGill adapts and keeping it on track to address 100% of critical climate risks by 2030.

📸 Louis Alson

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Fascinating!

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The eyes of long-spined porcupinefish are quite the sight, as with most nocturnal fish. In the shallow coral reefs where they live, the corneal iridescence significantly increases their visual range as they hunt for snails, sea urchins and hermit crabs under the cover of darkness.

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Happy #CtenophoreCtuesday! Enjoy this bloody-belly comb jelly (Lampocteis cruentiventer) for your moment of zen 🔊🪼 The color red is nearly invisible in deep-sea allowing these jellies to hide from potential predators. Credit video to @mbarinews.bsky.social.

#sciart #science #scicomm #ctenophore

2 weeks ago 284 57 2 5
Southern Blue-ringed Octopus: one of the most venomous animals on Earth, 1,200x more toxic than cyanide - no antidote exists

Southern Blue-ringed Octopus: one of the most venomous animals on Earth, 1,200x more toxic than cyanide - no antidote exists

Southern Blue-ringed Octopus: one of the most venomous animals on Earth, 1,200x more toxic than cyanide - no antidote exists

2 weeks ago 1227 193 84 22
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NASA just dropped this image of Artemis II astronaut Christina Koch looking back at us. The first woman to ever see our planet in its entirety. I’m not crying you’re crying 🥹🔭🧪 📸: NASA

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✨ This Xenopus 🐸 tadpole came to #FluorescenceFriday serving eye-conic energy 👀
Stage 39 eye stained with a whole rainbow: 💙 DAPI | ❤️ Acetylated tubulin | 💚 RPE | 🩵 Rhodopsin | 💜 Pax6. 📸 Image from Jian Sun.

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This is what baby eels looks like. The long trailing tail is its *stomach* (nope, we scientists have no idea why)

Eels hold their mysteries close

📽️ by Fan Zhang

2 weeks ago 523 151 8 3
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Here are ten seconds of Flamingoes feeding underwater.

3 weeks ago 4112 719 88 48
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Swim, sea pig, swim!

@echinoblog.bsky.social says this smooth swimmer, fr #ArgentinianDeepSeeps (2864m) belongs to family Elpidiidae, genus Peniagone. The urchin is an Echinothurioid, aka pancake urchin, w/cute "booties" on their spines around the bottom fringe for "walking" on soft sediments.

3 weeks ago 142 39 1 6
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As the McGill Sustainability Park takes shape, its academic team is forming to define the Park’s research, teaching and engagement vision. Academic Director Rees Kassen will guide the group as it develops the Park’s academic plan and fosters new sustainability collaborations.

🔗 mcgill.ca/x/5Y4

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Plantation glass frog from Costa Rica.

4 weeks ago 39 9 1 1
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Explore the intricate beauty and complexity of spider webs, where nature's artistry meets engineering marvels. Discover their secrets today.

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7 day old zebrafish embryo with green-glowing cells outlining the cardiovascular system, craniofacial muscles (faint), and the heart, with undulating blood vessels around the developing gut and glowing pectoral fins. Embryos has been imaged from below, with head facing up.

7 day old zebrafish embryo with green-glowing cells outlining the cardiovascular system, craniofacial muscles (faint), and the heart, with undulating blood vessels around the developing gut and glowing pectoral fins. Embryos has been imaged from below, with head facing up.

Want to observe how beautiful #devbio is?
Make more transgenic #zebrafish (ideally showing lateral plate mesoderm-derived structures, of course). 🧬🫀🐟🧪
(7 dpf tmem88a:EGFP, ventral view; pic cred Marycruz Flores Flores)
#PILIfe #LPM #MesodermIsStillRelevant

3 weeks ago 52 9 0 1
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Species Loss Scenarios Identify Canada's Northern Ecosystems as Disproportionately Vulnerable Aim Amid ongoing and accelerating global change, predicting the ecological consequences of future species loss is important for prioritising conservation actions to protect biodiversity. Species ric...

Congratulations to the Pollock Lab for their paper in the Journal of Biogeography! They explore how the potential loss of species-at-risk threatens community-level taxonomic, functional & interaction diversity across Canada, especially in northern ecosystems.
onlinelibrary.wiley.com/doi/10.1111/...

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AMPK modulates a DEAH box RNA-helicase to attenuate TOR signaling and establish developmental quiescence in Caenorhabditis elegans Caenorhabditis elegans adapts to starvation and other stressors by transiting through the quiescent developmental stage dauer, but the underlying mechanisms remain unclear. This study shows that TOR a...

Congratulations to Dr. Sabih Rashid and Prof. Richard Roy for their recent paper in PLoS Biology! They have characterized a novel RNA-binding helicase, HZL-1, which regulates reproductive developmental quiescence in C. elegans through the inhibition of key mRNAs. journals.plos.org/plosbiology/...

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2/2] The team surveyed participants around the world to test the degree to which human preferences for courtship sounds resembled animal preferences. They found that the strength of human preferences correlated with animal preferences, suggesting humans & animals share a "taste for the beautiful".

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Humans share acoustic preferences with other animals Many animals produce courtship sounds, and receivers prefer some sounds over others. Shared ancestry and convergent evolution may generate similarities in preference across species and underlie Darwin...

1/2] Congratulations to Dr. Logan James, Profs. Woolley & Sakata, et al for their recent paper in Science! Darwin noted how various ornaments of animals (eg. bird plumage) were aesthetically pleasing to humans, even though these traits evolved without human influence. www.science.org/doi/epdf/10....

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A wonderfully weird creature you'll find deep in the endangered Chocó Rainforest of Ecuador.

It's a moss-mimic walking stick insect (Trychopeplus laciniatus).

#insect #camouflage #rainforest

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We brake for nautilus!

“We usually stopped what we were doing whenever we saw nautilus, b/c they are such amazing animals to watch,” said #VisioningCoralSea Chief Scientist Dr. Robin Beaman of James Cook University. This enigmatic cephalopod navigated the depths before dinosaurs roamed the Earth!

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Humans share acoustic preferences with other animals, study shows A McGill University-led study has found that humans share acoustic preferences with other species, at least when it comes to animal calls. The results provide experimental evidence that shared sensory...

A McGill University-led study has found that humans share acoustic preferences with other species, at least when it comes to animal calls. The results provide experimental evidence that shared sensory processing mechanisms may shape aesthetic judgments of sound.

Read more ➡️ mcgill.ca/x/5fn

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This rarely-seen Glass Octopus was caught on camera. The clear sea creature was filmed by an underwater robot during an expedition off of the Phoenix Islands more than 3,200 miles northeast of Sydney, Australia.

Original post

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New paper from the Hendry & Barrett labs, led by Sarah Sanderson, found that after a severe drought an at-risk population of unarmoured stickleback became mostly armoured, providing insight into how extreme events can influence unique populations.
onlinelibrary.wiley.com/doi/full/10....

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🌊 Marvels in the midwater 🌊

ROV pilots zoomed in on this siphonophore at 755 meters during a recent #OBVI #LivingBioreactors dive offshore of Brazil, offering a breathtaking glimpse of a colonial animal comprised of zooids working in concert to survive and thrive in the deep Ocean.

1 month ago 88 28 3 5
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Connecting the dots for biodiversity action from the NAS/Royal Society Forum Summary of the Nine Recommendations and Biodiversity Monitoring Standards Framework papers from the NAS/Royal Society US-UK Forum in summer 2025, and how they connect to my work on collective knowledg...

Connecting the dots for global biodiversity action; two big perspectives out in @pnas.org this week lead by @billsutherland.bsky.social and @bio-diverse.bsky.social from the @royalsociety.org and @nationalacademies.org biodiversity forum last summer. My thoughts: anil.recoil.org/notes/nas-rs... 🌍

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A fast way to showcase your research: a new, ready-to-customize website template McGill Researchers - as part of an initiative led by the McGill Web Services team, it is now possible to request a centrally supported website to showcase your research or lab in the new WMS system, c...

#McGill researchers‼️ 📣

You can now request a research/lab website using a ready-to-customize template in McGill’s web management system 💻

Image-based layouts, easy-to-edit sections, and web support are available to help you quickly launch or refresh your research website! mcgill.ca/x/5q2

1 month ago 1 1 0 0
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✨Crepidula fornicata (slipper snail) 🐚 A classic model for spiral cleavage! 🧬 Crepidula embryos reveal how early cell divisions shape body plans and establish left-right asymmetry in spiralian animals 📸 Image by Jake Leyhr #ModelMonday

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The teeth of the Californian Horn #shark (Heterodontus francisci) are incredible - this CT image by @ellanicklin.bsky.social shows the first rows of the juvenile dentition. How scary can this shark be when it has jazz-hands for teeth!? 🦈🦷 @ufresearch.bsky.social 👐

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