Big turtles cry. A turtle with tear-stained eyes can be seen on the sandy shore. But this does not mean that she is upset about something, so the turtles get rid of the sand that gets in the eyes.
You can also find a crocodile in tears. However, crocodile tears are just a way to get rid of excess salt in the eyes.
The octopus turns white with fear. The octopus can change its color very quickly when frightened or angry. It also mimics by adapting to the color of the bottom.
Oysters often change their gender. Born into a male, the oyster eventually becomes a female in order to lay its eggs. Then she becomes a male again. Moreover, the warmer the water, the more often the oyster can change its sex.
A female hippopotamus finds a nanny for her baby on her way out to lunch. Each herd of hippos has a kind of kindergarten where females and cubs graze. The hippopotamus is a very caring animal. When leaving her baby for a while, the mother will make sure that her baby remains under the supervision of other females.
Skinks have antifreeze in their blood. The water skinks (lizards) of the highlands of Eastern Australia wake up from hibernation and emerge from their burrows while the ground is still covered in snow. Antifreeze in their blood allows them to lead an active lifestyle even at temperatures of two degrees below zero Celsius.
Crocodiles can climb trees. Young crocodiles are excellent tree climbers and often rest on branches.
Snakes can jump. The Central American viper can jump up to a meter when attacking its prey.
The Harpy Eagle loves to eat breakfast with monkeys. The Harpy is the king of carnivores in the forests of South America. It has rather short wings, which allows the eagle to fly freely between the branches of trees and preys on monkeys, which have always been its main food.
After bathing, the starlings wipe their feathers on the sheep. Starlings, like other birds, usually dry their feathers by shaking and flapping their wings, but Scottish starlings have been seen on sheep, on whose skins they wiped themselves as if on towels.
Swifts sleep on the fly. Swifts fly to great heights at sunset and sleep on the fly, and at dawn they descend closer to the ground.