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McGill Biology

@biomcgill.bsky.social

McGill University's Dept of Biology explores fundamental questions about the origin, #evolution, development, and #behaviour of living organisms. #biodiversity #ecology #neurobiology #molecularbiology

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WeberLab@McGill@weber-lab.bsky.social · last wk.

Excited to see this project finally come together 🥳 I used the timing of nucleolar assembly at the 8-cell stage as an assay for concentration-dependent phase separation (doi.org/10.1016/j.cu...), but could never explain why they don't appear at the 4-cell stage. Now we know!! 🤓

doi.org

GW Gant Luxton@gwgl.bsky.social · 2w ago

The nucleolus is the largest condensate in the nucleus and the site where ribosomes are built. It has no membrane. It assembles by phase separation, components demixing from the nucleoplasm into a droplet. So what decides when it forms? 🧵🪱💧 www.biorxiv.org/content/10.6...

McGill University@mcgill.ca · 2w ago

🏆 Montreal named #1 student city in Canada and top 20 worldwide We're proud to call one of the continent's top-ranked student cities home. From innovation and culture to exceptional student experiences, Montréal helps make McGill a destination for talent from around the world. mcgill.ca/x/5XA

Four students stand and sit along a stone overlook on Mount Royal, with Montreal’s downtown skyline blurred in the background at sunset. The group is engaged in conversation, wearing casual clothing, including a blue McGill sweatshirt. Trees and city buildings fill the scene, with warm evening light illuminating the skyline.
Genome Biology and Evolution@genomebiolevol.bsky.social · 3w ago

García-Elfring, Paccard & Barrett find that freshwater-associated differentiation in Atlantic Canadian stickleback occurs across contrasting demographic contexts and suggest a role for neurological and behavioral pathways in adaptation @biomcgill.bsky.social 🔗 doi.org/10.1093/gbe/evag083 #genome

Genomic Patterns of Parallel Divergence Across Demographically Heterogeneous Stickleback Populations in Eastern Canada

Abstract. The threespine stickleback (Gasterosteus aculeatus) is a key model in evolutionary genetics, particularly for studies of parallel evolution, yet

doi.org

c0nc0rdance@c0nc0rdance.bsky.social · 3w ago

For Shark Awareness Day, let's learn about the epaulette shark (Hemiscyllium ocellatum), named for a large black spot on their "shoulders" that resembles a military uniform. What's probably attracting your attention is their ability to crawl on land: let's talk about 'walking sharks'.

Flingjore@flingjore.com · 3w ago

Evolutionary biologists finally admit that high intelligence does not require making friends. A new octopus study completely dismantles the idea that big brains only evolve for social networking, proving that solitary sea creatures get incredibly smart just by navigating complicated neighborhoods.

How the Rule-Breaking Octopus Is Rewriting the Evolution of Intelligence - Nautilus | Science

How the Rule-Breaking Octopus Is Rewriting the Evolution of Intelligence: Cephalopods are loners, but they’re also intelligent

nautil.us

McGill University@mcgill.ca · last mo.

McGill, then and now ⏪ Generations of McGillians have walked this path. More than a century later, the view is still unmistakably McGill. ❤️ 📷 Notman Archives (McCord Museum), Campus before 1907

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Gary McFarlane@garym6942.bsky.social · 4w ago

'Ugliest Shark on the Planet': See the Elusive Goblin Shark, Filmed for the 1st Time in Its Deep-Sea Habitat. The sightings drastically expand the animals’ known geographic & depth range. www.smithsonianmag.com/smart-news/u... via @smithsonianmag.bsky.social #MarineBiology #zoology #science #SciChat

'Ugliest Shark on the Planet': See the Elusive Goblin Shark, Filmed for the First Time in Its Deep-Sea Habitat

Scientists spotted the enigmatic creatures in 2019 and again in 2024, marking the first times they've been observed alive in the wild. The sightings drastically expand the animals' known geographic an...

smithsonianmag.com

🇨🇦JOY 🇨🇦@joycomes.bsky.social · 2mo ago

The feather starfish free-swimming marine vertebrate related to starfish and sea urchins. It survives as a passive filter feeder, using feathery branching arms to catch plankton and drifting food particles from water column. There are up to 600 recognized living species of feather stars.

Anthony Ricciardi@ecoinvasions.bsky.social · 2mo ago

Invasion science justifies a stringent precautionary approach to planetary protection. #bioinvasions #biosecurity #astrobiology www.mcgill.ca/newsroom/cha...

NASA should build a biocontainment facility on the moon to protect Earth, researchers advise

A biocontainment facility designed to protect Earth from potentially hazardous biotic contaminants from space should be part of a planned NASA base on the moon, a policy paper maintains. “Humanity is ...

mcgill.ca