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Widespread heterotrophic unicellular organisms with constantly changing shapes
Gibbons are apes native to southern Asia.
The poisonous bite of the Chilean recluse spider poses a serious threat to human health.
A mammal with features typical of reptiles: it lays eggs and has a cloaca.
During the evolution of vertebrates the relative development of brain areas has changed.
A video about the mammals living in the cold climate zones of the Earth, like the polar bear,...
A type of herbivorous dinosaur easily recognisable by its large frill and three horns...
Extinct species of fish which had thick ´armour´ protecting the head.