The secret world of animal sleep

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...
Smithsonian Magazine on MSN

Rockhopper Penguins’ Athleticism Makes Them the Daredevils of the Animal World. Will a Warming Climate Slow Them Down?

A visit to the Falkland Islands, where the fearless seabirds navigate the rugged topography with tenacious spunk, shows the ...