Planaria gonocephala

One of the most common types of flatworms.

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A type of prehistoric reptile having bony plates on its back, which aided thermoregulation.

European ground squirrel

Subterranean rodents widespread in Central- and Eastern Europe.

Freshwater fishes

Many freshwater fishes are also popular as food.

The African penguin

Penguins do not only live in regions with freezing temperatures. They can also be found in the...

Are poison dart frogs poisonous?

Find out interesting facts about the anatomy of amphibians and their vital processes!


A transitional form between fish and tetrapods, or four-limbed vertebrates.

The California kingsnake

The California kingsnake is one of the most popular species of pet reptiles. It was named after...

Domestic dog

Dogs are the domesticated subspecies of grey wolves.

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