Kai Caspar
@nomascus.bsky.social
1.3K followers 620 following 250 posts
Zoology lecturer @hhu.de | Armchair biologist | Focus on rodents underground and gibbons in the trees, also one of @themanybirds.bsky.social | Organismic vertebrate biology
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Reposted by Kai Caspar
marcgilles.bsky.social
Want to know everything about bird smell?
I wrote an "Ornithological masterclass" on Avian Olfaction for BTO News @btobirds.bsky.social #ornithology
Link to the article 👉 www.researchgate.net/publication/...
Reposted by Kai Caspar
arminreindl.bsky.social
Day 7 of #Croctober
The Messel Pit in Germany is well known for its fossil crocs, which includes not one but two distinct lineages of terrestrial forms.
On the one hand the sebecoid Bergisuchus dietrichbergi, on the other the eusuchian Boverisuchus magnifrons
A digitall painting of Boverisuchus by Corbin Rainbolt. The animal is shown barreling through the underbrush of an ancient rainforest, chasing down a tiny early horse. Compared to Bergisuchus the head is a lot more similar to modern crocs, although boxier and not as flattened. A headshot illustration of Bergisuchus by Scott Reid, drawn in black marker. The animal has an armored neck, large eyes and a softly rounded head with an enormous tooth in the lower jaw that slides into a large constriction in the upper jaw.
Reposted by Kai Caspar
evoneuro.bsky.social
I am going to repost our job ad because we are not getting many applicants!
Like anywhere, there are pros and cons, so if you have questions just DM or email me.
#academicjobs #neuroskyence #neuroethology #academicsky
evoneuro.bsky.social
For anyone on the neuroscience job market, our ads are up. We are looking for anyone working in systems neuroscience of animals to join us in southern Alberta 🇨🇦
#academicsky #neuroskyence #neuroethology #academicjobs #Canada
neurojobs.sfn.org/job/39049/as...
Assistant Professor (Neuroscience, Tenure Track) - Lethbridge (City), Alberta (CA) job with University of Lethbridge | 39049
Assistant Professor (tenure track) of the Department of Neuroscience at the University of Lethbridge, Alberta, Canada
neurojobs.sfn.org
Reposted by Kai Caspar
serpenillus.bsky.social
A pair of Cartorhynchus lenticarpus, swimming in the shallow coastal waters of Early Triassic Asia

#paleoart #sciart #art
Illustration showing a pair of Cartorhynchus swimming in coastal waters
Reposted by Kai Caspar
arctomet.bsky.social
For those who want to read the original Osborn paper from 1905 naming Tyrannosaurus rex, its junior synonym Dynamosaurus imperiosus, and Albertosaurus sarcophagus, here it is!

digitallibrary.amnh.org/items/a02fc8...
digitallibrary.amnh.org
Reposted by Kai Caspar
profsimonfisher.bsky.social
Twenty-four years ago today, our paper “A forkhead-domain gene is mutated in a severe speech and language disorder” was published: www.nature.com/articles/350....
A personal thread about the ups & downs of the journey we took to get to that point....1/n
🗣️🧬🧪
Image shows the first two printed pages of the paper “A forkhead-domain gene is mutated in a severe speech and language disorder” by Cecilia Lai and colleagues, published in Nature in 2001 (volume 413, pages 519-523). The abstract reads as follows:
Individuals affected with developmental disorders of speech and language have substantial difficulty acquiring expressive and/or receptive language in the absence of any profound sensory or neurological impairment and despite adequate intelligence and opportunity. Although studies of twins consistently indicate that a significant genetic component is involved, most families segregating speech and language deficits show complex patterns of inheritance, and a gene that predisposes individuals to such disorders has not been identified. We have studied a unique three-generation pedigree, KE, in which a severe speech and language disorder is transmitted as an autosomal-dominant monogenic trait. Our previous work mapped the locus responsible, SPCH1, to a 5.6-cM interval of region 7q31 on chromosome 7. We also identified an unrelated individual, CS, in whom speech and language impairment is associated with a chromosomal translocation involving the SPCH1 interval. Here we show that the gene FOXP2, which encodes a putative transcription factor containing a polyglutamine tract and a forkhead DNA-binding domain, is directly disrupted by the translocation breakpoint in CS. In addition, we identify a point mutation in affected members of the KE family that alters an invariant amino-acid residue in the forkhead domain. Our findings suggest that FOXP2 is involved in the developmental process that culminates in speech and language.
Reposted by Kai Caspar
echinoblog.bsky.social
A lovely account of predation by BENTHIC comb jellies! for #ctenophoreday! 10/4 big buddy! www.blennywatcher.com/2013/05/21/d...
Reposted by Kai Caspar
Reposted by Kai Caspar
fishevo.bsky.social
Our Special issue on Visual Ecology in Challenging Environments is out: #coral reef & #deep-sea fishes, #reindeers on polar daylight, #bioluminescence, non-visual #pigments & life in dark caves. Happy to co-edit with Sara Stieb + thks to all contributors! See in Functional Ecology: buff.ly/z5AYxZQ
Reposted by Kai Caspar
joensuulab.bsky.social
🌟 Thrilled to share that my lab’s first publication is now out in @natmetabolism.nature.com. Congrats to the team 🎉

🧠 We discovered that neurons use endogenous fatty acids as an energy fuel, challenging long-standing models of sugars being the exclusive energy source for neurons. 1/3
Reposted by Kai Caspar
heatherfsmith.bsky.social
Preparing @anatrecord.bsky.social swag for the upcoming PaleoConnected 2025 conference at Mizzou!
Beautiful paleoart reconstructions by Henry Sharpe (pseudosuchians) and Adam Hartstone-Rose (sabretooth cat).
Reposted by Kai Caspar
orsomoretti.bsky.social
Bohlinia attica- prehistoric giraffid, miocene of Europe.
Fossil giraffe- Bohlinia attica.
Reposted by Kai Caspar
orsomoretti.bsky.social
Qilin tungurensis- A newly identified new genus of giraffe from the Miocene of Inner Mongolia, China.
An extinct giraffe from the Miocene of Inner Mongolia stands in a clearing among trees and bushes.
Reposted by Kai Caspar
Reposted by Kai Caspar
twigtechnology.bsky.social
Your daily reminder that tool use is not about ‘intelligence’ or having hands. It’s about a coincidence of object and actor with time to explore and a need to fill.

Whether tool use spreads can depend on social stuff like who’s watching, but isolated tool use springs up everywhere all the time 🏺🐮🛠️🧪
cowtoolsdaily.bsky.social
ummm.. holy shit? tool use in bovids confirmed? holy holy shit?
Reposted by Kai Caspar
rebeccarhelm.bsky.social
I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)
nomascus.bsky.social
City-life changes the social behaviour of wall lizards 🧪

royalsocietypublishing.org/doi/10.1098/...
Reposted by Kai Caspar
villesinkkonen.bsky.social
Remingtoncetid protowhales #sciart
Reposted by Kai Caspar
rebeccarhelm.bsky.social
“Who me? As a tripod fish, I deal with stress and fear by transforming into an eyeless abyssal predatory elder god. What about you?”

🎥 Huge thanks to @frida.yolotzin for letting me use the baby tripod fish video, and @schmidtocean for permission to share the adult video.