Bottlenose dolphins are sea mammals which use ultrasound for orientation.
The largest land mammal on Earth.
The Arctic tern is famous for its long migration route: it flies from the Arctic to the Antarctic and back again each year.
Dogs are the domesticated subspecies of grey wolves.
Subterranean rodents widespread in Central- and Eastern Europe.
Moles are small subterranean mammals with modified, spade-like forelegs.
Otters are semi-aquatic predatory mammals.
Bats use ultrasound to navigate and hunt for prey.
A mammal with features typical of reptiles: it lays eggs and has a cloaca.
Red deer are even-toed ungulates, ruminants. Their males have spectacular antlers.
Igloos were the typical dwellings built by Eskimos living in the Arctic zone.