Animals must evolve over time to adapt to changing climates and edge out others for the right to limited resources. Some, however, are evolving especially fast! Which ones, and why?

Kim Horcher and special guest Andy Riesmeyer (Host of Dweebcast) discuss.

This list originally came from Mental Floss. Support them and read more here: http://mentalfloss.com/article/64300/…

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