The Dunkleosteus was an armoured fish with a length of eight to ten metres, which was unusually large for the Devonian period. It was one of the first giants of the underwater world, together with the Titanichthys.

Fun Fact: In water, flamingos usually stand on one leg so that both feet don’t get cold.

Despite the camouflage spots in their fur, giraffes do not always remain undetected by predators. But they know to defend themselves and can kick really hard with their front hooves.