Top 10 Most Bizarre Animal Facts That Sound Like a Lie

Thanks to special elastic grooves in their intestines, a wombat's droppings are angular little blocks. That way they don't roll off rocks when they mark their territory.

The only species in which the male gets pregnant: the female lays her eggs in his pouch, after which, following weeks of contractions, he shoots hundreds of mini seahorses into the world.

They can survive at caustic soda lakes with boiling geyser water and feed their chicks 'crop milk', a bright red fluid they produce in their own throat.

Because they have to consciously surface to breathe, one half of their brain rests while the other half stays alert for sharks.

Two hearts pump blood to the gills, while the third heart serves the rest of the body. The blood is blue because it contains copper instead of iron.

Research shows that cows form close friendships within the herd. When they're separated, their heart rate shoots up and their milk production drops.

Male gentoo penguins search for hours for the smoothest, most beautiful pebble on the beach to present to the female. If she accepts, they put it in their nest.

During periods of extreme drought or cold, snails can seal their shell with a thick layer of mucus and go into a deep dormancy (estivation) that lasts years.

Even under a microscope, police forensic experts struggle to tell the difference between a koala's fingerprint and a human's.

During winter dormancy under a frozen layer of ice, certain freshwater turtles can absorb oxygen directly from the water through special sacs in their cloaca.