Hummingbird
Hummingbirds are the only birds that can fly backwards, and their hearts can beat over 1,000 times a minute.
Hippopotamus
Hippos make their own red sunscreen and cannot really swim, so they walk along the river bottom instead.
Cat
Cats cannot taste sweetness, which may explain their attitude to everything else.
Butterfly
Butterflies taste with their feet, which means every landing is also a meal review.
Flamingo
Flamingos are not born pink; they turn pink from what they eat, and stop being pink if they stop.
Octopus
An octopus has three hearts and blue blood, and one heart stops when it swims, so it prefers to walk.
Wombat
The wombat is the only animal known to produce cube-shaped droppings, and it does not take questions.
Giraffe
A giraffe is so tall that the weather at its head is reported separately from the weather at its feet.