rhinos at the zoo in Emmen

Kingdom: Animalia (animals)
Phylum: Chordata (chordates)
Subphylum: Vertebrata (vertebrates)
Class: Mammalia (mammals)
Order: Perissodactyla (horses, rhinoceroses, and tapirs)
Family: Rhinocerotidae (rhinoceroses)

They are either white or black rhinoceros but it's difficult to tell because none of them clearly shows its upper lip, the distinguishing feature...

Genus: Ceratotherium (white rhinoceros)
Species: Ceratotherium simum (white rhinoceros)

Genus: Diceros (black rhinoceros)
Species: Diceros bicornis (black rhinoceros)

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