The hornless creature's head could also reach 23ft (7m) to graze treetops, making it taller than a giraffe ... it had roamed freely between north-west China and the Indian-Pakistani subcontinent ...

But in the savannas of Africa, giraffe populations have plummeted — so much so that the U.S. government is moving to add many of these long-necked mammals to its official list of imperiled species.

Giraffes could soon end up on the endangered species list. See why the U.S. Fish and Wildlife Service is calling for the designation.