Lives: Foothills of the Himalayas in India and Nepal
Distinguishing characteristics: Just the one horn. Large folds of skin that look as if they have been riveted
How many left? 2,850, on the increase
Photograph: Alamy
Lives: Primarily southern Africa
Distinguishing characteristics: A square upper lip and a hump on the back of its neck
How many left? 20,150, having recovered from fewer than 200 at the start of the 20th century, but still endangered
Photograph: Stu Porter/Alamy
Lives: Southern and eastern Africa
Distinguishing characteristics: Pointed lips. Don’t look for a black rhino: it’s actually brown
How many left? 4,860, numbers slowly increasing but still endangered Photograph: First Light/Alamy
Lives: Western Java
Distinguishing characteristics: Like the Indian rhino, but shorter at 5ft to 5½ft
How many left? 44 Photograph: Al Pidgen/Alamy
Lives: South-east Asia
Distinguishing characteristics: The only really hairy rhino; two horns; reddish-brown
How many left? 275 Photograph: National Geographic Image Collec/Alamy