Kwasi Wrensford describes the subjects of his research as "elfin": skittish little squirrel-cousins with angular faces, pointy ears and narrow, furry tails. He studies two species in particular: the Alpine chipmunk and the Lodgepole chipmunk. As the climate warms, these two chipmunks have developed different ways of coping. The Alpine chipmunk has climbed higher, in search of cooler habitat, while the Lodgepole chipmunk continues to thrive in its historic habitat. On this episode, Kwasi explains to Emily Kwong how these squirrelly critters typify two important evolutionary strategies, and why they could shed light on what's in store for other creatures all over the globe.
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