RC Hoover
@rchoover.bsky.social
He/him. Fishes! Morphology! Micro-CT!
PhD Candidate in The Convergence Lab @ UMN/ Bell Museum.
PhD Candidate in The Convergence Lab @ UMN/ Bell Museum.
Reposted by RC Hoover
ICB's
Carly Anne York: Bravely following her curiosity- a #book review
by R.C. Hoover #PhD Candidate
"Carly presents the serious discoveries of silly #science in a witty and easy to understand way..."
integrativeandcomparativebiology.wordpress.com/2025/12/02/c...
#biology #nonfiction
Carly Anne York: Bravely following her curiosity- a #book review
by R.C. Hoover #PhD Candidate
"Carly presents the serious discoveries of silly #science in a witty and easy to understand way..."
integrativeandcomparativebiology.wordpress.com/2025/12/02/c...
#biology #nonfiction
December 2, 2025 at 11:49 AM
ICB's
Carly Anne York: Bravely following her curiosity- a #book review
by R.C. Hoover #PhD Candidate
"Carly presents the serious discoveries of silly #science in a witty and easy to understand way..."
integrativeandcomparativebiology.wordpress.com/2025/12/02/c...
#biology #nonfiction
Carly Anne York: Bravely following her curiosity- a #book review
by R.C. Hoover #PhD Candidate
"Carly presents the serious discoveries of silly #science in a witty and easy to understand way..."
integrativeandcomparativebiology.wordpress.com/2025/12/02/c...
#biology #nonfiction
Reposted by RC Hoover
Great video highlighting the value of natural history collections and the importance of preserving them for generations to come
The Library of Life - Dahiana Arcila, Ricardo Betancur-R., Ben Frable
YouTube video by FishEvolutionLab-Edu
youtube.com
November 19, 2025 at 11:51 PM
Great video highlighting the value of natural history collections and the importance of preserving them for generations to come
Reposted by RC Hoover
Using fish teeth fossils from lake sediments, we found the haplochromine cichlids diversified quite rapidly and the entire food web evolved within just the first three millennia after the formation of modern Lake Victoria (which started refilling ~ 17k years ago). www.nature.com/articles/s41...
Fossil evidence for trait diversification in an adaptive radiation - Scientific Reports
Adaptive radiation is an important process for the origin of functional and ecological biodiversity. Understanding how, when, and why adaptive radiations occur is a long-standing interest in evolution...
www.nature.com
November 6, 2025 at 8:05 AM
Using fish teeth fossils from lake sediments, we found the haplochromine cichlids diversified quite rapidly and the entire food web evolved within just the first three millennia after the formation of modern Lake Victoria (which started refilling ~ 17k years ago). www.nature.com/articles/s41...
Reposted by RC Hoover
Ohio State news piece on our deep-sea fish body shape study:
news.osu.edu/how-fishes-o...
news.osu.edu/how-fishes-o...
November 13, 2025 at 4:56 PM
Ohio State news piece on our deep-sea fish body shape study:
news.osu.edu/how-fishes-o...
news.osu.edu/how-fishes-o...
Reposted by RC Hoover
A paper in Scientific Reports shows that chameleons have evolved a longer, coiled optic nerve that is likely to provide “slack” to reduce tension on the optic nerve during the extensive rotations characteristic of the chameleon eye. go.nature.com/3JTSgQ1 #evosky 🧪
November 12, 2025 at 8:28 PM
A paper in Scientific Reports shows that chameleons have evolved a longer, coiled optic nerve that is likely to provide “slack” to reduce tension on the optic nerve during the extensive rotations characteristic of the chameleon eye. go.nature.com/3JTSgQ1 #evosky 🧪
Reposted by RC Hoover
Recent paper from our lab on the puncture performance of hemipene spines in snakes! Some are like cat claws, others barely puncture. A single species can have many different spine morphologies and thousands of spines! 🧪 🐍
royalsocietypublishing.org/doi/full/10....
royalsocietypublishing.org/doi/full/10....
November 3, 2025 at 12:06 PM
Recent paper from our lab on the puncture performance of hemipene spines in snakes! Some are like cat claws, others barely puncture. A single species can have many different spine morphologies and thousands of spines! 🧪 🐍
royalsocietypublishing.org/doi/full/10....
royalsocietypublishing.org/doi/full/10....
Reposted by RC Hoover
🦀 Ever heard of a body-snatching barnacle? Meet Sacculina, the parasite that turns crabs into zombie parents. It takes over their bodies, shuts down reproduction, and even makes male crabs care for its eggs. Nature’s version of mind control is way creepier than fiction. 💀 #HappyHalloween
October 31, 2025 at 2:05 PM
🦀 Ever heard of a body-snatching barnacle? Meet Sacculina, the parasite that turns crabs into zombie parents. It takes over their bodies, shuts down reproduction, and even makes male crabs care for its eggs. Nature’s version of mind control is way creepier than fiction. 💀 #HappyHalloween
Reposted by RC Hoover
I love working at a museum because that means I get to create fantabulous SciComm activities 🐟🐡 Visitors will have the chance to match 3D printed living and extinct fish jaws to what they think the fish eats, based on jaw and tooth shape.
October 30, 2025 at 12:10 AM
I love working at a museum because that means I get to create fantabulous SciComm activities 🐟🐡 Visitors will have the chance to match 3D printed living and extinct fish jaws to what they think the fish eats, based on jaw and tooth shape.
Reposted by RC Hoover
I was recently interviewed by @sciencenews.bsky.social about the discovery of new Antarctic #fish nesting in the fragile Weddell Sea in #antarctica. This time it was the yellow fin notie Nototheniops nudifrons nesting, likely in groups!
🧪 🌎 🇦🇶 🐟 🧊
www.sciencenews.org/article/anta...
🧪 🌎 🇦🇶 🐟 🧊
www.sciencenews.org/article/anta...
Deep Antarctic waters hold geometric communities of fish nests
Scientists found thousands of patterned fish nests in Antarctica’s Weddell Sea, boosting calls for marine protected areas.
www.sciencenews.org
October 29, 2025 at 12:07 PM
I was recently interviewed by @sciencenews.bsky.social about the discovery of new Antarctic #fish nesting in the fragile Weddell Sea in #antarctica. This time it was the yellow fin notie Nototheniops nudifrons nesting, likely in groups!
🧪 🌎 🇦🇶 🐟 🧊
www.sciencenews.org/article/anta...
🧪 🌎 🇦🇶 🐟 🧊
www.sciencenews.org/article/anta...
Reposted by RC Hoover
Congrats @danielgeldof.bsky.social on defending your Master's today. It's been wonderful having a CT expert and poacher enthusiast in the lab. Well done.
October 28, 2025 at 7:48 PM
Congrats @danielgeldof.bsky.social on defending your Master's today. It's been wonderful having a CT expert and poacher enthusiast in the lab. Well done.
Reposted by RC Hoover
Interested in automated length and morphological measurements? Check out our new app and preprint!
🧪🐟🦑
ecoevorxiv.org/repository/v...
🧪🐟🦑
ecoevorxiv.org/repository/v...
February 24, 2025 at 2:17 PM
Interested in automated length and morphological measurements? Check out our new app and preprint!
🧪🐟🦑
ecoevorxiv.org/repository/v...
🧪🐟🦑
ecoevorxiv.org/repository/v...
Reposted by RC Hoover
New Collection Study Grants for students and postdocs to come visit the @burkemuseum.bsky.social! Applications due 12/15/25. www.burkemuseum.org/collections-...
Collections Study Grants
Collections study grants provide financial assistance for graduate students and post-doctoral researchers to study the collections of the University of Washington Burke Museum (UWBM).
www.burkemuseum.org
October 22, 2025 at 11:21 PM
New Collection Study Grants for students and postdocs to come visit the @burkemuseum.bsky.social! Applications due 12/15/25. www.burkemuseum.org/collections-...
Reposted by RC Hoover
Why are some species smaller than a paperclip while others grow longer than a school bus? How is body size evolution governed in animals? Out now in @pnas.org we tackle these longstanding questions through a genetic lens using my favorite group of fishes as our model!! www.pnas.org/doi/10.1073/...
Parallel shifts in differential gene expression reveal convergent miniaturization in fishes | PNAS
Body size variation in vertebrates is a complex polygenic trait, tightly correlated
with numerous aspects of a species’ biology, ecology, and physi...
www.pnas.org
October 22, 2025 at 9:33 PM
Why are some species smaller than a paperclip while others grow longer than a school bus? How is body size evolution governed in animals? Out now in @pnas.org we tackle these longstanding questions through a genetic lens using my favorite group of fishes as our model!! www.pnas.org/doi/10.1073/...
Reposted by RC Hoover
👻 G-g-ghost? Nope, s-s-snailfish! 🤍
Meet the mesmerizing new addition to our Into the Deep/En lo Profundo exhibit, rough snailfish! These ethereal charmers live in the benthic zone, a scientific term for the seafloor.
Meet the mesmerizing new addition to our Into the Deep/En lo Profundo exhibit, rough snailfish! These ethereal charmers live in the benthic zone, a scientific term for the seafloor.
October 20, 2025 at 8:57 PM
👻 G-g-ghost? Nope, s-s-snailfish! 🤍
Meet the mesmerizing new addition to our Into the Deep/En lo Profundo exhibit, rough snailfish! These ethereal charmers live in the benthic zone, a scientific term for the seafloor.
Meet the mesmerizing new addition to our Into the Deep/En lo Profundo exhibit, rough snailfish! These ethereal charmers live in the benthic zone, a scientific term for the seafloor.
Reposted by RC Hoover
Bellator militaris — the horned searobin. Just like other armored searobins, they possess modified pectoral fin rays used to walk and detect food on the seafloor.
This specimen is TCWC 6818.17 available on MorphoSource.
www.morphosource.org/concern/biol...
🦑 🌊 🧪
This specimen is TCWC 6818.17 available on MorphoSource.
www.morphosource.org/concern/biol...
🦑 🌊 🧪
October 20, 2025 at 3:45 PM
Bellator militaris — the horned searobin. Just like other armored searobins, they possess modified pectoral fin rays used to walk and detect food on the seafloor.
This specimen is TCWC 6818.17 available on MorphoSource.
www.morphosource.org/concern/biol...
🦑 🌊 🧪
This specimen is TCWC 6818.17 available on MorphoSource.
www.morphosource.org/concern/biol...
🦑 🌊 🧪
Reposted by RC Hoover
Phylogenetic relationships and the evolution of fin and body shape in the surgeonfishes https://www.biorxiv.org/content/10.1101/2025.10.09.680739v1
October 10, 2025 at 11:07 PM
Phylogenetic relationships and the evolution of fin and body shape in the surgeonfishes https://www.biorxiv.org/content/10.1101/2025.10.09.680739v1
Reposted by RC Hoover
Ana amazing beach seining crew caught lots of critters. Spiny lump suckers, silver spotted sculpins, 2 species of surface, pipefish and many more!
October 9, 2025 at 12:51 AM
Ana amazing beach seining crew caught lots of critters. Spiny lump suckers, silver spotted sculpins, 2 species of surface, pipefish and many more!
Reposted by RC Hoover
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.
Curator of Birds - Royal Ontario Museum - Career Page
Apply to Curator of Birds at Royal Ontario Museum in Toronto, ON, Canada.
royalontariomuseum.applytojob.com
October 9, 2025 at 6:36 PM
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.
Reposted by RC Hoover
Job Alert! Assistant Prof of Fish Ecology at
@wfcbucdavis.bsky.social, with a focus on freshwater and anadromous coldwater fishes. This is a wonderful and supportive place to work. Please share with your fishy friends! recruit.ucdavis.edu/JPF07351
@wfcbucdavis.bsky.social, with a focus on freshwater and anadromous coldwater fishes. This is a wonderful and supportive place to work. Please share with your fishy friends! recruit.ucdavis.edu/JPF07351
Assistant Professor of Fish Ecology
University of California, Davis is hiring. Apply now!
recruit.ucdavis.edu
October 2, 2025 at 11:31 PM
Job Alert! Assistant Prof of Fish Ecology at
@wfcbucdavis.bsky.social, with a focus on freshwater and anadromous coldwater fishes. This is a wonderful and supportive place to work. Please share with your fishy friends! recruit.ucdavis.edu/JPF07351
@wfcbucdavis.bsky.social, with a focus on freshwater and anadromous coldwater fishes. This is a wonderful and supportive place to work. Please share with your fishy friends! recruit.ucdavis.edu/JPF07351
Reposted by RC Hoover
Super excited to be advertising a #PhD position on how #marine #biodiversity affects #ecosystem functioning in the #Arctic at Aarhus uni . Pls apply and repost. I am looking forward to working with you.🧪🦑🦀🌍
phd.nat.au.dk/for-applican...
phd.nat.au.dk/for-applican...
Linking marine biodiversity to ecosystem function across scales in the Arctic
phd.nat.au.dk
October 1, 2025 at 11:43 AM
Super excited to be advertising a #PhD position on how #marine #biodiversity affects #ecosystem functioning in the #Arctic at Aarhus uni . Pls apply and repost. I am looking forward to working with you.🧪🦑🦀🌍
phd.nat.au.dk/for-applican...
phd.nat.au.dk/for-applican...
Reposted by RC Hoover
Amazing that a 'tongue bite' evolved in ray-finned fishes as early as the Mississippian! Also I need this exact paper for a Triassic project in the works, couldn't have come out at a better time.
From Giles, Kolmann, and Friedman (2025).
royalsocietypublishing.org/doi/10.1098/...
From Giles, Kolmann, and Friedman (2025).
royalsocietypublishing.org/doi/10.1098/...
September 30, 2025 at 6:45 PM
Amazing that a 'tongue bite' evolved in ray-finned fishes as early as the Mississippian! Also I need this exact paper for a Triassic project in the works, couldn't have come out at a better time.
From Giles, Kolmann, and Friedman (2025).
royalsocietypublishing.org/doi/10.1098/...
From Giles, Kolmann, and Friedman (2025).
royalsocietypublishing.org/doi/10.1098/...
Reposted by RC Hoover
Hey, you!
Do you know any teachers, librarians, scout troop leaders, or other k-12 educators?
Please send them this picture & link www.skypeascientist.com/sign-up.html
For what Skype a Scientist lacks in advertising budget we make up for in program value.
We're GLOBAL so this applies to all 😘
Do you know any teachers, librarians, scout troop leaders, or other k-12 educators?
Please send them this picture & link www.skypeascientist.com/sign-up.html
For what Skype a Scientist lacks in advertising budget we make up for in program value.
We're GLOBAL so this applies to all 😘
September 30, 2025 at 12:55 PM
Hey, you!
Do you know any teachers, librarians, scout troop leaders, or other k-12 educators?
Please send them this picture & link www.skypeascientist.com/sign-up.html
For what Skype a Scientist lacks in advertising budget we make up for in program value.
We're GLOBAL so this applies to all 😘
Do you know any teachers, librarians, scout troop leaders, or other k-12 educators?
Please send them this picture & link www.skypeascientist.com/sign-up.html
For what Skype a Scientist lacks in advertising budget we make up for in program value.
We're GLOBAL so this applies to all 😘
Reposted by RC Hoover
New paper alert!!!🚨 in our new study we find that Antarctic icefishes added a new module in their skulls during their adaptive radiation special shout out to @mayaranevesbio.bsky.social who led this project!
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
September 29, 2025 at 8:05 PM
New paper alert!!!🚨 in our new study we find that Antarctic icefishes added a new module in their skulls during their adaptive radiation special shout out to @mayaranevesbio.bsky.social who led this project!
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by RC Hoover
A little nest building River Chub for Rene ;)
#SundayFishSketch 🐡
#SundayFishSketch 🐡
September 29, 2025 at 3:54 PM
A little nest building River Chub for Rene ;)
#SundayFishSketch 🐡
#SundayFishSketch 🐡