We’ve all had those days where everything’s too much, and the only solution is to shut down like a laptop that’s had enough—just to reboot our sanity. Apparently, it happens to animals, too, as you'll ...

Q: How can squirrels jump so far? And how do they hold on to tree limbs as they gambol about? A: Squirrels have evolved with several anatomical adaptations that help them with their acrobatics. While ...