cichlidnick.bsky.social
Nick Peoples
@cichlidnick.bsky.social
130 followers 250 following 1 posts
PhD Candidate @ UC Davis Wainwright Lab studying fish macroevolution and 🦷
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Reposted by Nick Peoples
fishfetisher.bsky.social
Emily Troyer @fishfetisher.bsky.social · Sep 1
Excited to announce that the 1st paper from my postdoc is now out in @currentbiology.bsky.social ! Using a large dataset of 3D preserved fossils, we explore the diversification of jaws in early bony fishes. 1/15
www.cell.com/current-biol...
Macroevolutionary role reversals in the earliest radiation of bony fishes
Troyer et al. examine lower jaw evolution in Silurian-Devonian bony fishes and find substantial differences in patterns of morphological disparity, rates of shape evolution, and functional diversity b...
www.cell.com
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Reposted by Nick Peoples
plosbiology.org
PLOS Biology @plosbiology.org · Jun 26
Large #teeth & highly protrusible #jaws are 2 feeding innovations that have evolved in #fish. But @cichlidnick.bsky.social &co suggest that they're incompatible with each other; large teeth unlock new feeding modes, but constrain how prey can be captured @plosbiology.org 🧪 plos.io/3HVH7go
Extreme morphological adaptations to accommodate large teeth in fish jaws. Depicted are species from the upper 10% of our dataset on tooth size, which have all evolved unique modifications to accommodate large teeth in their jaws. Top left: Upper jaw of Scarus iseri, in labial view. Photo credit Louis Imbeau, iNaturalist (CC BY 4.0). Bottom left: Lower jaw of Canthigaster bennetti, in labial view, showing the fused beak. Photo credit Rickard Zerpe, Flickr (CC BY 2.0). Top right: Lateral view of Zanclus cornutus upper jaw showing the procumbent implantation of teeth. The arrow indicates the location of a horizontal tooth crypt. Photo credit Laszlo Ilyes, Flickr (CC BY 2.0). Bottom right: Lateral view of teeth from the lower jaw of Pseudobalistes flavimarginatus. The arrows indicate large attachment sites on the lingual aspect of the tooth. Photo credit Rickard Zerpe, Flickr (CC BY 2.0).
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Reposted by Nick Peoples
plosbiology.org
PLOS Biology @plosbiology.org · Jun 25
Large #teeth & highly protrusible #jaws are 2 feeding innovations that have evolved in #fish. But @cichlidnick.bsky.social &co suggest that they're incompatible with each other; large teeth unlock new feeding modes, but constrain how prey can be captured @plosbiology.org 🧪 plos.io/3HVH7go
Extreme morphological adaptations to accommodate large teeth in fish jaws. Depicted are species from the upper 10% of our dataset on tooth size, which have all evolved unique modifications to accommodate large teeth in their jaws. Top left: Upper jaw of Scarus iseri, in labial view. Photo credit Louis Imbeau, iNaturalist (CC BY 4.0). Bottom left: Lower jaw of Canthigaster bennetti, in labial view, showing the fused beak. Photo credit Rickard Zerpe, Flickr (CC BY 2.0). Top right: Lateral view of Zanclus cornutus upper jaw showing the procumbent implantation of teeth. The arrow indicates the location of a horizontal tooth crypt. Photo credit Laszlo Ilyes, Flickr (CC BY 2.0). Bottom right: Lateral view of teeth from the lower jaw of Pseudobalistes flavimarginatus. The arrows indicate large attachment sites on the lingual aspect of the tooth. Photo credit Rickard Zerpe, Flickr (CC BY 2.0).
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cichlidnick.bsky.social
Nick Peoples @cichlidnick.bsky.social · Jun 24
Out today in @plosbiology.org! We show that two major advances in fish feeding - highly protrusible jaws and large teeth - are functionally and evolutionarily incompatible with each other. @mikemihalitsis.bsky.social and Peter Wainwright. Free to read: journals.plos.org/plosbiology/...
Incompatibility between two major innovations shaped the diversification of fish feeding mechanisms
Large teeth and highly protrusible jaws are two feeding innovations that have evolved in fishes. High-speed videography and comparative phylogenetic analyses indicate that they are incompatible with e...
journals.plos.org
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Reposted by Nick Peoples
keifferwilliams.bsky.social
Keiffer Williams @keifferwilliams.bsky.social · Jun 24
I'm defending my dissertation next week, Monday June 30th at 10 AM ET. DM for a zoom link if interested!
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