Crosshatch Butterflyfish (Chaetodon xanthurus), Anilao #MarineLife 🌿🐟

This small zoo has a comparatively large aquarium with some interesting exhibits. They keep caimans together with convict and Midas cichlids and piranhas. #zoo

ostracods are pleasant and gregarious creatures

J is for Johannesteijsmannia

#TrilobiteTuesday Silurian buddies or thrown together in the Holocene? Small block of Wenlock Limestone with the trilobites Trimerus delphinocephalus and Calymene blumenbachii. Formerly on display in the Earth Galleries at the NHM, London.

New paper alert! ‼️

This is still one of my favorite Ray Troll illustrations. #TeamFish 🥛🐟🧪

First new #paleoart piece finished for 2026: a super modern, 100% accurate take on Mosasaurus and a plesiosaur. In unrelated news, I had the spirit of the early 19th-century palaeoartist John Martin exorcised from my house over the weekend. #paleontology #fossil #sciart #retropaleoart #art

Russetfin Topminnow my beloved. I just learned about you and I cherish you so much. I have never wanted to go to Florida before I met you but now I yearn for the sandy creeks of Ookaloosa County. 📷 Seth Patterson

It’s simple. Many of us share #science. Please join up. go.bsky.app/H3qcvgP Please add your name below and expertise and you’ll be added! #scientistswhocommunicatescience #scicomm #womeninsciencw

How I feel watching the back and forth of the Metriaclima vs Maylandia debate. You can track entire cichlid academic lineages just based on which genus name they use

For those interested in Great Lakes fish (or what I’ve been up to so far in my postdoc) I will be giving a talk for the Coregonine Science Webinar on Friday, January 9th at 12:30 EST! bit.ly/010926

Another video from teaching in Moorea this fall, illustrating a classic mutualism: a pistol shrimp (Alpheus sp.) works on clearing and stabilizing its burrow while its goby partner (Ctenogobiops sp.) keeps watch.

m.youtube.com/watch?v=tnvb... Cuckoo catfish are endemic to Lake Tanganyika, but they are able to exploit all mouthbrooding cichlids like they try in my video. This NatGeo video shows this behavior nicely with a parasitized Shuja horei, a Tanganyika endemic cichlid. 🐟🧪

m.youtube.com/watch?v=tnvb... Cuckoo catfish are endemic to Lake Tanganyika, but they are able to exploit all mouthbrooding cichlids like they try in my video. This NatGeo video shows this behavior nicely with a parasitized Shuja horei, a Tanganyika endemic cichlid. 🐟🧪

Lake Malawi cichlid Copadichromis azureus being busy courting a female while at the same time keeping brood-parasitizing cuckoo catfish away. Filmed at Tierpark Bochum. 🐟 #video #aquarium

A golden rule of fish tanks is to locate them away from direct sunlight. These fish haven’t read those books.

Lake Malawi cichlid Copadichromis azureus being busy courting a female while at the same time keeping brood-parasitizing cuckoo catfish away. Filmed at Tierpark Bochum. 🐟 #video #aquarium

Mikrogeophagus ramirezi, the ram cichlid, is a native of the Llanos ecoregion of Venezuela and Colombia. These are a male and female that I kept some years ago of a wild-type strain. 🐟 #photography #fishkeeping

writing about meiofauna animals in USA is like "In 1862, S. W. Manjensen wrote 'The Copepods of Georgia' and recorded six species; however, in 2005, 425 undescribed species of family Skunchiidae were discovered in a small hole in Skunch County. Thus, there are probably more than six. The End."

Für Naturnerds: Aktuell ist der richtige Zeitpunkt, um nach einem neuen Weberknecht für Deutschland Ausschau zu halten. Dicranopalpus larvatus ist eine winteraktive Art, die in den vergangenen Jahren in Belgien, Großbritannien und den Niederlanden auftauchte www.aracnidotaxonomy.com/2025/08/firs...

Added another piece today so I guess I should finally post The Fish Wall. I’ll link the artists in the thread but I especially love the mbuna cichlids in the middle (with an orange blotch fish!), which is a commission from my bestie @beziostudio.bsky.social 🥰 the sea dragons are also by him

Come and join me and my colleagues at the Department of Biology, #LundUniversity in #sweden! We have am open position as Senior Lecturer/Associate Professor in Biodiversity. Apply here no later than February 11 2026: https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1

Mikrogeophagus ramirezi, the ram cichlid, is a native of the Llanos ecoregion of Venezuela and Colombia. These are a male and female that I kept some years ago of a wild-type strain. 🐟 #photography #fishkeeping

Okay, #MarineLife folks: what the hell is this? Pic is from a blackwater dive in Anilao. There were a lot of small squid around and my best guess is that it's ink from them, but I thought the ink was supposed to form a cloud? This had some sort of weak surface layer keeping it together...

My first hairy #shrimp!!! Suuuuuper stoked to see this rare holy grail species! The #hairyshrimp (Phycocaris simulans) aka the #AlgaeShrimp, is a nearly impossible to see tiny tiny tiny little varmint. #phycocarissimulans #🦐 #calimari #muckdiving #tulamben #tulambenbali #bali

Amazing trace fossils in the floor slabs of the Birr Castle's gift shop, Ireland.

hopefully I am capturing the majesty of the silver carp here

I'm really enjoying this memoir on the history of numerical methods in phylogenetics by F. James Rohlf: academic.oup.com/sysbio/advan...

Really excited to have the new issue of Paleobiology @paleosoc.bsky.social out celebrating the 50th anniversary of #punctuatedequilibria #macroevolution #paleobiology #palaeontology #paleontology @nilese.bsky.social www.cambridge.org/core/journal...

The Canada Government will offer 400 postdoctoral fellowships to international researchers in early 2026. If you have a background in wildlife microbiome or quantitative genetics and are interested to apply to work on microbiome variation in Sable Island horses or caribou, feel free to get in touch

Fish At Pretty Good Place In Its Life Right Now https://theonion.com/fish-at-pretty-good-place-in-its-life-right-now-1819573188/

MEGARAPTORS, from the video: www.youtube.com/watch?v=FvvF... 🌶️ theropods with large and functional forelims believed to have been very witty 🌶️ this poster is now also available at redbubble/mariolanzas for prints and more 🌶️ #megaraptora #dinosaurs #paleoart #theropoda #australovenator #fukuiraptor

First #FossilFriday of 2026: here's #paleoart of Dromaeosaurus atop a half-eaten juvenile Chasmosaurus. Dromaeosaurus was no Velociraptor clone, but a relatively robust and probably hard-biting raptorial dinosaur. Painted... two years ago now, I guess, in 2024. #fossil #paleontology #dinosaur

Happy New Year and happy 25th anniversary to the Jurassic Coast WHS! This #FossilFriday we're introducing a fossil of the month to celebrate the collectors who make this place what it is. We're kicking it off with this beautiful ammonite from local collector Lizzie Hingley. (1/2)

This report in Nature on the costs of competing for & administering scientific grants is shocking: "In other words, European taxpayers will have spent more on the funding process than on the funding itself, and the scientific ecosystem has been drained." www.nature.com/articles/d41... 🧪

And for ‚proper‘ science: published three co-authored papers in 2025 about ooid formation, belemnite phylogeochemistry, and cameral deposit formation of orthoceratoid cephalopods. 🧪 link.springer.com/article/10.1... bg.copernicus.org/articles/22/... onlinelibrary.wiley.com/doi/full/10....

My personal fishkeeping year 2025 saw the publication of my review of cichlid biogeography and fossil record at the Cichlid Room Companion and the addition of the Lake Victoria cichlids to the main tank. 🐟 cichlidae.com/article.php?...

🧵Happy New Year! 2025 ended up being a decent year for marine mammal paleontology - loads of new fossil whales and dolphins, a couple of sea cow studies, but a bit light on pinnipeds and archaeocetes. Read my new blog here, and this thread for some of this year's highlights! 🧪🐬🦖

And for ‚proper‘ science: published three co-authored papers in 2025 about ooid formation, belemnite phylogeochemistry, and cameral deposit formation of orthoceratoid cephalopods. 🧪 link.springer.com/article/10.1... bg.copernicus.org/articles/22/... onlinelibrary.wiley.com/doi/full/10....

My personal fishkeeping year 2025 saw the publication of my review of cichlid biogeography and fossil record at the Cichlid Room Companion and the addition of the Lake Victoria cichlids to the main tank. 🐟 cichlidae.com/article.php?...

Happy New Year, Bluesky! Here, have a fish. Threadfin hawkfish (Cirrhitichthys aprinus), Anilao #MarineLife 🐟🌿

Important warning

Some new #paleoart to see out 2025: a Hybodus shark attacks a squadron of belemnites (Passaloteuthis), which respond by deploying ink decoys of themselves and jetting to safety. Cephalopod ink use is amazingly sophisticated; it's not just a smokescreen! #HappyNewYear, everybody! #sciart #fossil

Frozen ladybug. #Photography #Macrophoto 📷 #Fujifilm X-T4 | Pergear 60mm f2.8 II Helicon Focus stack, handheld photos with flash.

please look at this spider called a "Queensland Ultraflat" (pic by Marten Stevens)

The platy babies are over a month old now! Biggest Mama had another clutch on Christmas, so there's about a dozen more in here.

Snailish buddy for #InverteFest! Your day has been blessed with snaily goodness 🐌

I got a new #gopro for Christmas and I’m really excited to play with it more throughout the year Endler’s livebearers - Poecilia wingei Platys - Xiphophorus sp. (Shot in my #animalroom 12-28-25) 🐠 #pond #aquarium #fishkeeping #fish #fishtank #pet

Beautiful scales 🐟🐠🤿