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Freshwater fish used as food in many parts of the world.
Living fossil, important stage in the evolution of tetrapods.
Widespread heterotrophic unicellular organisms with constantly changing shapes
Moles are small subterranean mammals with modified, spade-like forelegs.
The largest species of lizard that lives in isolation. Even a single bite of it can be fatal.
A species of monkeys with complex social structure where hierarchical system can be clearly...
Find out the difference between the two species of this magnificent animal: the African and...
A prehistoric flying reptile, similar to birds. However, there is no direct evolutionary...