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During the evolution of vertebrates the relative development of brain areas has changed.
Several analogous types of eyes have developed independently through convergent evolution.
A mammal with features typical of reptiles: it lays eggs and has a cloaca.
Living fossil, important stage in the evolution of tetrapods.
Lemurs only live on the island of Madagascar. Here are a number of
fascinating facts about them.
A video about the mammals living in the cold climate zones of the Earth, like the polar bear,...
A typical animal of the Andes kept as a beast of burden as well as for its meat and wool.
Marsh harriers are birds of prey found almost worldwide.