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A species of venomous snakes widespread in Europe. Its bite is rarely fatal to humans.
The dromedary is an indispensable animal for inhabitants of the deserts.
Cattle typically live in stables. They were domesticated around the same time as swine. Cow's...
The most ancient group of animals, they live underwater, lack real tissues and body symmetry.
Freshwater fish used as food in many parts of the world.
This video explains why the Barbary sheep on the savannahs bear such a strong resemblance to goats.
During the evolution of vertebrates the relative development of brain areas has changed.
The ancestors of Arachnida and Crustacea belonged to the class Trilobita.