Polar bears in an arctic exhibit.
Polar bear fur is not white but transparent – the skin underneath is black.
Europe's largest land mammal, successfully reintroduced.
The European bison was extinct in the wild by 1927 – zoo breeding programs saved the species.
South American penguin, named after the naturalist Alexander von Humboldt.
Humboldt penguins dig nesting burrows in guano deposits along the coast.
The largest member of the deer family with a massive palmate antler.
Moose are excellent swimmers and can dive up to 6 meters deep.
Europe's largest wild cat with characteristic tufted ears.
The lynx has such keen eyesight that it can spot a mouse from 75 meters away.