A bumblebee generates a positive electrical charge as it flaps its wings, and transfers some of the charge to a flower when it lands. Thanks to a 2013 study in the journal Science, experts now know that when bees detect a change in a flower's charge, they avoid the flower, sensing that another bee has recently removed its pollen.
Move over, cheetahs. Peregrine falcons have been clocked at 242 mph, making the black and gray birds the fastest members of the animal kingdom. Diving toward prey, peregrines tuck their wings into their bodies, creating an aerodynamic teardrop shape perfect for quickly striking unassuming birds and small mammals.
Three-toed sloths may not move quickly, but their speedy recovery from wounds that would kill other animals have made them the focus of scientific research. Some experts believe that the scores of beneficial bacteria that live in a sloth's fur help sloths heal unusually quickly, and without infection.
Reindeers' unique ability to see UV light allows them to better forage for food and avoid predators in the harsh Arctic landscape. Their primary winter food source, lichens, and the fur of their main predator, the wolf, both absorb UV light, so they stand out against the UV-reflecting snow.