It is time now for our science news roundup from Short Wave, NPR's science podcast. And I am joined by the show's two hosts, Regina Barber and Emily Kwong. Hello. EMILY KWONG, BYLINE: Hi, Scott.

African elephants are known to recognize groups of humans, to test electric fences with their tusks to avoid injury, and (of course) can remember paths to resources passed down to them decades earlier ...

An elephant never forgets, the saying goes. They certainly have remarkable brains, with about three times as many neurons as we have. Anatomically, their brains look like a caricature of ours. The ...