Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park! “Specialized gas-exchange endothelium of the zebrafish gill” — www.biorxiv.org/content/10.6... Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)

Ladies, does your man hang out in the deep sea, have a cartilaginous skeleton, and teeth on his forehead? That's not your man, that is a chimera. 👻🦈 In honour of Halloween weekend, Nathan Lujan @potamophile.bsky.social Curator of Fishes at ROM) gave us a lesson on these creepy creatures.

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a collections specialist specializing in birds and mammals. Candidates should have 3-5 years collections experience and deep knowledge of avian and mammalian taxonomy, systematics, and identification.

The Tennessee Aquarium is hiring a temporary field technician for sampling work to discover Trispot Darter distribution. Details below: 🧪🐟 #TeamFish

Great pair of articles in this morning's Ann Arbor News highlighting the outstanding new leadership of the U-M Museum of Zoology and U-M Herbarium: Alison Davis Rabosky (left) and Thais Vasconcelos (right). 🍄🌿🌺🐚🪲🐟🐸🐍🐦🐿️

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a new Curator of Plants. With more than 1.1 million specimens, including the largest, most representative collection of Ontario flora available, ROM's plant collection is world-class and global in scope.

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a new Curator of Birds. With more than 200,000 specimens, including the world’s largest collection of bird skeletons, ROM's bird collection is the largest in Canada and one of the world's largest.

The @romtoronto.bsky.social Sharks exhibition is opening this weekend! The perfect family-friendly destination for the Thanksgiving long weekend!

And that's how you integrate digital elements into an exhibition. Part of the temporary "China's Dinosaur World" at the Shanghai Natural History Museum, China. Closing this November. Video source: Shanghai Let's Meet

Today is #AmazonRainforestDay! Home to 47 million people and around 10% of all species on Earth, this incredible ecosystem is under threat from mass deforestation and climate change. You can visit buff.ly/D6xZCkJ to learn more about how to help the Amazon Rainforest.

I'm excited to be traveling to Lima, Peru, tomorrow to give a keynote lecture on "New approaches to the study of neotropical fishes: Genomics, eDNA, and computed tomography" at the National Life Sciences Congress.

Proud of @romtoronto.bsky.social and @utsc.utoronto.ca Provosts Postdoctoral Fellow Tobit Liyandja for publishing this core chapter of his PhD dissertation.

Postdoc position (24 mos) in Bioinformatics for Integrative Taxonomy at MNHN, Paris. Develop software tools for taxonomy research. Apply by Sept 7: https://recrutement.mnhn.fr/front-jobs-detail.html?id_job=1294&id_origin=0 #postdoc

“We are undergoing unprecedented loss of freshwater across the planet.” And need new leadership yesterday. :/ www.newscientist.com/article/2490...

@FMNH is hiring a new curator of Invertebrate Zoology!

Fish are disappearing in an African lake that feeds the people of four countries. #Freshwater lakes may not be as vast as oceans but they are just as important. #fisheries news-decoder.com/finally-a-fo...

📢 We're hiring! Roles at SHOAL don't come up that often, and when they do, we know they're exciting: are you our new Data Officer? Learn more and apply here 👉 shoalconservation.org/careers/

Was thrilled to find so many freshwater sponges during a practice dive in the St. Lawrence River, including some growing on unionid mussels! #freshwatersponges

Foundations: please step up and take over the Biodiversity Heritage Library (BHL). This is an absolutely essential scanned archive of all of the old journals and books from the 1500s to about 1920. Has been indispensable for my research. about.biodiversitylibrary.org/call-for-sup...

Kicking off the 2025 ROM Population Genomics Symposium is @asherdcutter.bsky.social sharing new insights into the diversity of Caenorhabditis in the @romtoronto.bsky.social Glass Room.

Great talk on population genomics of the Xingu River Volta Grande by PDF Tobit Liyandja from the Lovejoy and Lujan labs at the EEB-Toronto Atwood Colloquium!

Some microphagous fishes have a unique pocket-like throat structure, epibranchial organ (EBO), that helps gather tiny food particles. New study of 13 species reveals diverse EBO anatomy, weak phylogenetic ties & possible link to diet Evans et al: anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...

We’re excited to announce our expanded slate of ROM Ontario Fish Identification Workshops for 2025. 🐟 Designed primarily for professionals, technicians, field biologists, and environmental consultants, other interested individuals - including university and college students – are also welcome!

Paleo-art-map of South America during the Latest Cretaceous (Maastrichtian, 72 - 66 MYA). Original resolution: 75 x 100 cm (300 DPI). This is the first part of a wider Maastrichtian series that I've been working on over the winter. Sharing another map tomorrow :) #geology #dinosaurs #sciart

Although many invertebrates and other less-charismatic groups are key for ecosystem service provision, they and their functions are rarely included in conservation strategies. Benoit Guénard, @achughes.bsky.social et al show how funding largely goes to charismatic rather than threatened species 🌐🧪🪲

Interesting that even in this article about conservation funding disparities, fish aren’t mentioned once. ‘Most conservation funds go to large vertebrates at expense of ‘neglected’ species’. www.theguardian.com/environment/...

What a great story! The introduction alone is well worth reading.

Second Rights of Nature Tribunal to coincide with Toronto mining conference PDAC. Will focus on Canada’s international extractivism with a specific focus on the Belo Sun mining project, which poses an existential threat to the lower Xingu River, Brasil. www.rightsofnaturetribunal.org/impacts-of-m...

Finally having the first lab meeting of 2025, with presentations on Acestrorhamphidae alpha taxonomy from Tiago Faria and 3D shape variation in loricariid opercles from Mikhail Clare!

Check out the gear on this Hemipsilichthys papillatus (MCP 39539), a member of the 'primitive' loricariid subfamily Delturinae from the Paraíba do Sul drainage in southeastern Brazil. It has large cheek odontodes like the more diverse Hypostominae subfamily, but it can't evert them.

Take note @oliviachowtoronto.bsky.social, and @freddieoconnell.bsky.social

Another Caddisfly larva feeding, this time on a more typical food, scraping algae/biofilm off a dead leaf Pretty sure this is Limnephilidae #Pondlife #BugSky #UKWildlife #inverts #Insect #Caddisflies

👀 🧪 "Punctuated versus gradual shifts in the multivariate evolutionary process..."

🐾 Celebrate the 100th anniversary of #NHMLA's diorama halls and discover the unique combination of art and science through our #pstART exhibit, "Reframing Dioramas: The Art of Preserving Wilderness"! #museum #art #installation #naturalhistorymuseum #diorama #nature #science #history

📢 "We must take this news seriously." The IUCN co-authored Global Freshwater Fauna Assessment brought experts together from across the world of freshwater conservation, including many regular SHOAL collaborators! Keep scrolling to hear what they had to say about this watershed report 👇

Is it "compassionate" to allow wildlife to be injured & killed by invasive rats, mice, cats, foxes, snakes etc (all transported by humans to ecosystems they otherwise could never reach)? Is it ethical to avoid responsibility for mitigating the ecological messes we made and allowing them to worsen?

❌ BREAKING NEWS ❌ 1/4 of freshwater animals are at risk of #extinction‼️ The largest global assessment of freshwater animals on the IUCN Red List to date has revealed that 24% are at high risk of extinction, according to analysis published in Nature today. 👇 shoalconservation.org/global-fresh...

The Panama Canal’s Newest Voyagers: Fishy Intruders From Two Oceans www.nytimes.com/2025/01/07/c...

Tomato,tamato, potato,patater “The ESA listed [ ] isn’t a valid species!” Endless debate that only confuses the public,used for political gain by anti-ESA politicos & special interests,&15 minutes of fame for some “scientists” eager to get their names in the MSM www.livescience.com/animals/what...

Turns out the Snail Darter, which halted a TVA dam’s construction in the first major test of the Endangered Species Act, was never a distinct species. All species descriptions are hypotheses open to testing.

40 years ago all of Genbank was published in print form by NAR. The same format today would require over 4 light seconds of shelf space. To a year of progress in 2025.

Getting hyped for #SICB2025. We'll have a talk and a poster on Pangolin tongues as part of the Hydrostats symposium. Get ready for a multimedia pangopalooza!

Canada and the U.S. worked together to stamp out the invasive sea lamprey in the Great Lakes. Then COVID-19 happened. www.theglobeandmail.com/canada/artic...

A personal reflection: “Journalists like myself have a choice: surrender to the fascist mob that wants to intimidate the truth-tellers – or rededicate ourselves to doing what’s right no matter the cost.” www.newschannel5.com/news/newscha...

For those who just submitted a manuscript before the break, congratulations! Well done! Go celebrate & relax during the break! Just keep in mind that editors (the unsung altruistic heroes of scientific publishing) would like to do the same, so just give them some more time to respond. 🙏

New hatchlings triple red handfish conservation breeding program numbers at the Institute for Marine and Antarctic Studies. Less than a hundred individuals remain in the wild. #fishmas #conservation #marinebiology

Males of the genus Chaetostoma exhibit sexually dimorphic enlargement of their soft, slime-covered snout, as does the distantly related genus Ancistrus. Both genera reproduce by laying their eggs on the roofs of caves. Perhaps the soft snout and slimecoat has a benefit for either the eggs or larvae.