Expressing Surprise or Disbelief

The giant Goliath bird-eater spider can cover the head of a man.

Polar bears cover their black noses with their paw when they want to hide in the snow.

Sharks grow around 30,000 teeth during their lifetime.

A bird called the Egyptian plover goes inside a crocodile's mouth to clean its teeth and flies out safely.

Hippos swear a red-pink version of blood.

Giraffes clean their teeth with their tongues.

Crocodiles can't stick out their tongues.

Some octopuses can be poisonous

The mantis shrimp has a special front arm that can heat surrounding water up to 4,700 Celcius.

Kangaroos can't walk backwards.

Rats clean themselves frequently. They even wash their faces with water.

Camels don't sweat, so their humps are full of water.