Researchers have documented in a vertical wind tunnel the amazing ability of one species of salamander — which spends its entire life in the tops of redwoods — to parachute, glide and maneuver in mid-air. Ground-dwellers, on the other hand, freak out during free-fall. The salamander’s skydiving skills are likely a way to steer back to a tree it has fallen or jumped from to avoid terrestrial predators.