hank greenberg The Island of Shrinking Mammoths

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The mammoths fossils found on the Channel Islands off the coast of southern California are much smaller than their relatives found on the mainland. They were so small that they came to be seen as their own species. How did they get there? And why were they so small?

Thanks to Ceri Thomas for the mammoth reconstructions throughout this episode. Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

Thanks to Julio Lacerda and Studio 252mya for the Palaeoloxodon illustrations. You can find more of Julio's work here: https://252mya.com/gallery/julio-lacerda

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

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References:
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“Extreme expansion of the olfactory receptor gene repertoire in African elephants and evolutionary dynamics of orthologous gene groups in 13 placental mammals.” Niimura Y, Matsui A, Touhara K. 2014.
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Evolution of Island Mammals: Adaptation and Extinction of Placental Mammals on Islands by Alexandra van der Geer, George Lyras, John de Vos and Michael Dermitzakis.
Niimura Y, Matsui A, Touhara K. 2014. Extreme expansion of the olfactory receptor gene repertoire in African elephants and evolutionary dynamics of orthologous gene groups in 13 placental mammals. Genome Res doi: 10.1101/gr.169532.113
https://www.nhm-wien.ac.at/jart/prj3/...
"Sea level, paleogeography, and archeology on California's Northern
Channel Islands," by Reeder-Myers et al. 2015.
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hank greenberg The Island of Shrinking Mammoths
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Science & Technology	Upload TimePublished on 5 Feb 2019

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