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\title{Science AMA Series: I'm Siobh\selectlanguage{ngerman}án Cooke, paleontologist, professor and
adventurer looking for fossil clues to inform how we preserve the
future. AMA!\selectlanguage{english}}



\author[1]{HopkinsMedicine_AMA }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 24, 2026}


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\begin{abstract}
Hi Reddit, my name is Siobh\selectlanguage{ngerman}án Cooke, and I'm an anatomy professor and
paleontologist at the Johns Hopkins University School of Medicine. My
research (mostly) focuses on two things: 1) The evolution and eventual
extinction of the native mammals of the Caribbean region including
monkeys, giant sloths, rodents, and tiny (and not so tiny) shrews.
Recently, my colleagues and I published a paper demonstrating that
humans likely played a role in the extinction of many of these animals
just 6000 years ago.
(http://www.annualreviews.org/doi/10.1146/annurev-ecolsys-110316-022754).
2) Teeth and jaws! Often all paleontologists find in the fossil record
are teeth, and so we use a variety of modeling methods to get as much
information out of them as possible. Some of this information is even
applicable to understanding how our own teeth and jaws function. I also
spend much of my time during the late summer and early fall teaching
human anatomy to our medical students. Ever wonder what it is like to
try to recover fossils from caves? Why do paleontologists care about
teeth so much? And what does any of this have to do with teaching a
gross anatomy to medical students? I look forward to having you Ask Me
Anything on December 11th, 1 PM ET.%
\end{abstract}\selectlanguage{ngerman}%



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