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Kevin Stevens

@neohibolites.bsky.social

460 followers 580 following 390 posts

Cichlid enthusiast and paleontologist. https://www.researchgate.net/profile/Kevin-Stevens-2

www.researchgate.net

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Kevin Stevens @neohibolites.bsky.social · May 27

What do we know about the earliest history of cichlid fishes? Here’s an extended and updated English version of my article on the biogeography and early evolution of cichlids, which I originally published in German in 2020. 🐟 🧪 #cichlid #biogeography #paleontology
cichlidae.com/article.php?...

Biogeography, evolution, and ecology of the ancestral cichlids

This article examines the early evolution and biogeography of cichlids, discussing fossil evidence and the hypotheses regarding their origins. It reviews the debate between Gondwanan vicariance and ma...

cichlidae.com

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Reposted by Kevin Stevens

European Geosciences Union (EGU) @egu.eu · 3h

Are you an #ECS looking for creative and engaging ways to #communicate your message? This #workshop is for you!

🎨Graphic Design for Geoscience on Digital Platforms: An Introduction
📆14 Oct 2025 14:00 CEST
🖱️Register here: egu.eu/86A3SQ
Learn more here: egu.eu/3ZJMQ2

📸: Hans Volkert on #imaggeo

Image description: A blue and gray mountainous backdrop .With text reading: ' Workshop Graphic Design for Geoscience on Digital Platforms: An Introduction Register NOW.'

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Butterfly Conservation Europe @europebutterfly.bsky.social · 3h

The new European Butterfly Red List found that the biggest threats to butterflies continue to be habitat loss and degradation but climate warming is having a devastating effect on sp. in the far north and far south of Europe. 52% (34) of all Red List sp. are now threatened by climate warming.

Hipparchia tamadabae (La Palma Grayling) is threatened by wildfires (Photo: Yeray Monasterio, Zerynthia)

Recent wildfire on Gran Canaria (Photo: Yeray Monasterio, Zerynthia)

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Butterfly Conservation Europe @europebutterfly.bsky.social · 1d

We are also deeply saddened that the Madeiran Large White, Pieris wollastoni, is now officially extinct: it was last seen in 1986. The full report can be downloaded here www.bc-europe.eu/documents/68...

A Museum specimen of now extinct Madeiran Large White, Pieris wollastoni (Photo: Sam Ellis)

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Trish Greenhalgh @trishgreenhalgh.bsky.social · 8h

Well done Shafaq Aftab. When a reviewer stole her work and published it under his own name, she fought for a YEAR to get the journal to retract the paper. Just wondering why it took Wiley a YEAR to do this. 🧪 #academicsky

retractionwatch.com/2025/10/03/w...

Wiley retracts study stolen by reviewer, following Retraction Watch coverage

A Wiley journal has retracted a paper more than a year after a researcher reported the work was hers and had been stolen by a reviewer for another journal. As we reported in July, Shafaq Aftab, now…

retractionwatch.com

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Linnea Lungstrom @linnealungstrom.bsky.social · 1d

No better reason to join Bluesky then to say the first chapter of my PhD is out as a preprint! New surgeonfish phylogeny, ecomorphological relationships, evolutionary shape correlations-with NEW method to accurately account for phylogenetic covariation among shapes!

www.biorxiv.org/content/10.1...

Phylogenetic relationships and the evolution of fin and body shape in the surgeonfishes

Patterns of evolutionary change in the fin and body shapes of fishes are strongly related to dietary ecology and locomotor mechanisms, and associations between shapes affects ecomorphological relation...

www.biorxiv.org

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Matt Friedman @friedmanlab.bsky.social · 23h

Opportunity to manage one of the world's great herpetology collections and join the outstanding community of museum folks here at U-M! 🐍🦎🐢🐊🐸

Christopher Dick @chrisdick.bsky.social · 23h

Michigan's #UMMZ Reptiles and Amphibians Collections Manager position is now open. Join a great museums group and help manage the world's second largest herpetology research collection. Please share! careers.umich.edu/job_detail/2...

Res Museum Collection Manager | U-M Careers

careers.umich.edu

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Reposted by Kevin Stevens

Miki Perkins @mikiperkins.bsky.social · 2d

This is desperately sad. Professor John Woinarski breaks the news for @aunz.theconversation.com that Australia's next animal - the tiny Christmas Island Shrew - has officially been declared extinct.

theconversation.com/and-then-the...

And then there were none: Australia’s only shrew declared extinct

Australia’s only known shrew has been declared extinct. Its loss emphasises the need for national protection of Australia’s rare and unique wildlife.

theconversation.com

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Endangered Species @endangered.bsky.social · 1d

The pungu is a species of cichlid endemic to Lake Barombi Mbo in Cameroon where it prefers shallow waters of about 1 to 3 metres in depth.

IUCN status: Critically Endangered

Pungu (Pungu maclareni) (alt text from Wikimedia)

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jörg.freyhof @jfreyhof.bsky.social · 1d

Weather is grey and cold in Berlin - our moth are not. October is still a great season with many very nice species on the wing. #teammoth, #moth, #stadtnatur, #berlinbiodiversity, #berlin, #urbanbiodiversity

Agrochola macilenta Gelbbraune Herbsteule

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Matt @xenomatt.bsky.social · 1d

World octopus day, you say? Very well, then... here is an octopus (possibly a male argonaut). No clue what the jellyfish is. The jellyfish is swimming down to try and get away from the bright flashing lights.
Pic from a blackwater dive in Balayan Bay, Anilao.

🦑🌿 #Invertebrates

A jellyfish, upside down because it's swimming downwards. On top of its bell is an octopus; it is translucent/white with some visible brown organs.

#Nature #Wildlife #Macro #WildlifePhotography #NaturePhotography #UnderwaterPhotography

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Henry Gee @endofthepier.bsky.social · 1d

‘Matters Arising’

Dr Who accuses the arrogant Professor Stalman that he is ‘a nitwit’. (The Inferno, 1970)

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Chris Lowery @chrislowery.bsky.social · 1d

Happy #FossilFriday, the University of Texas is hiring two curators/non-TT professors for our Vertebrate and Non-vertebrate Paleontology Labs: apply.interfolio.com/175702

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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EvolDir @evoldir.bsky.social · 1d

The Max Planck Institute for Evolutionary Biology seeks postdocs in Evolutionary Genomics and Cell Signaling related to biological clocks. More info: https://www.mpg.de/25524526/ and https://www.mpg.de/25524509/ #postdoc

Postdoctoral Fellow (m/f/d) | Evolutionary Genomics, Comparative Genomics and/or Conservation Genomics

Postdoctoral Fellow (m/f/d) in Evolutionary Genomics, Comparative Genomics and/or Conservation Genomics

www.mpg.de

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Kristen Behrens, PhD @behrenskristen.bsky.social · 2d

New paper alert! Not yet formatted, but check it out to see what we found regarding sex chromosomes in tilapia and other outgroup cichlid species.

academic.oup.com/gbe/advance-...

Before the East African radiation: sex chromosome systems in basal haplotilapiine cichlids

Abstract. Cichlid fishes have undergone an extraordinary diversification in East Africa. They also have a high rate of sex chromosome turnover. This clade

academic.oup.com

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Kevin Stevens @neohibolites.bsky.social · 1d

🐟🧪

UAntwerp FunMorph @uafunmorph.bsky.social · 1d

Fish suck... but species that feed on algae suck differently! 🐟 A new publication in Communications Biology by #UAFunMorph members Jana De Ridder, Peter Aerts, and Sam Van Wassenbergh, demonstrates how head motion patterns for generating suction are finetuned to the species' main diets.

Reposted by Kevin Stevens

UAntwerp FunMorph @uafunmorph.bsky.social · 1d

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Lee = MS squared 🐟🌊🏳️‍⚧️ @aquaticenby.bsky.social · 1d

I think we all know by now that deep sea fish hold the patent on weird. But for this #FishOfTheWeek let's talk about some deep sea fish that decided they needed weird eyes, of all things. The binocular fish is quite appropriately named
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A face-on view of a binocular fish. It looks terrified except its many needle-sharp teeth assure you its doing the terrifying

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Coral City Camera @coralcitycamera.bsky.social · 1d

Is this how French grunts French kiss? #frenchgrunt #grunt #frenchkiss #mouthoff #mouthfight #makeout #kissyfish #showdown #spat #quarrel #coral #coralhead #coralcitycamera #miami #portmiami #biscaynebay #coralcity

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mossworm.bsky.social @mossworm.bsky.social · 1d

still amazing to me the number of movies, games, etc. which have Venus Flytrap-based creatures in some form compared to the actual native range of Venus Flytrap, which is like, the great untamed jungles of a few wet pine savannas in North Carolina

map illustrating the native range of Venus Flytrap plants, just a little half circle around coastal North and South Carolina in USA

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Kevin Stevens @neohibolites.bsky.social · 3d

Paralabidochromis sauvagei from Lake Victoria. My fish are of the southern variety of this species, their ancestors originally come from Makobe Island. In the north of the lake, males are actually blue. 🐟 #fishkeeping #photography

A colorful cichlid in my aquarium. Plants are visible in the background. The fish is yellow with some reddish hues. It has a gray head and a black stripe running through its eye. Some faint lines are visible on its body.

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Henning @geohenning.bsky.social · 2d

I'm looking for recommendations for more books like these - about the history of geology or connected to major geologic events from the past in any way. ⚒️ #Geology

Four books. "Extinctions: How Life Survives, Adapts and Evolves" by Michael J. Benton.
"The Map That Changed the World" by Simon Winchester
"Ghosts of the Tsunami" by Richard Lloyd Parry
"Ein Riss durch die Welt" by Simon Winchester

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Kevin Stevens @neohibolites.bsky.social · 2d

Dorrik Stow - Vanished Ocean (includes poems about the Tethys)

Jack Repcheck - The Man who found Time (about James Hutton)

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Catie Haunted Haus-man 👻👻👻 @catiehausman.bsky.social · 3d

Job posting!

apply.interfolio.com/173947

Assistant or Associate Professor of Global Environmental Policy

University of Michigan-Ann Arbor: School for Environment and Sustainability

Come be a Wolverine! In Tree Town! In the Mitten!

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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ciclasoman.bsky.social @ciclasoman.bsky.social · 9d

Juvenile Etroplus canarensis are the ultimate curious and gorgeous small cichlid ever 🙌🏼😍

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Marine eDNA Dude @marinednadude.bsky.social · 2d

Got to hang out with the greatest recent adaptive radiation of vertebrates on earth. All hail the mbuna - Malawi cichlids

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