bat

Hibernation is a complicated process governed by different cues across species. But with the climate changing, species can’t rely on those seasonal patterns. 

The deadly fungal disease white nose syndrome killed many of them and the U.S. Fish and Wildlife Service said the bat could become extinct.

“Baby talk,” or “motherese,” might not be a language with any native speakers, but most humans seem suddenly fluent in it in certain situations. And it turns out bats might do something similar.