Long-tailed mayfly

Larvae of this type of mayflies spend the first three years of their lives in water, their adult lives last for only one day which they use for mating.

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Vertebrate brain evolution

During the evolution of vertebrates the relative development of brain areas has changed.

Diversity of light-detecting organs

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.

West Indian Ocean coelacanth

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.

Animals of the polar regions

A video about the mammals living in the cold climate zones of the Earth, like the polar bear,...

The llama

A typical animal of the Andes kept as a beast of burden as well as for its meat and wool.

Marsh harrier

Marsh harriers are birds of prey found almost worldwide.

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