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A type of snake with a characteristic spot on its neck.
Living fossil, important stage in the evolution of tetrapods.
A fearsome predator of snowy mountains. Of all the felids the snow leopard jumps the furthest.
The archaeopteryx shows characteristics of both birds and reptiles. It is probably the...
Subterranean rodents widespread in Central- and Eastern Europe.
Curious little animal living in underground burrows in the African savannahs.
Several analogous types of eyes have developed independently through convergent evolution.
The life cycle of vertebrates starts with the production of the reproductive cells of an...