When well fed, the humps are plump and erect, but as resources decline, the humps shrink and lean to the side.

When moving faster than a walking speed, they pace, by stepping forwards with both legs on the same side (as opposed to trotting, using alternate diagonals as done by most other quadrupeds).

camel page sex-1

However, with so few wild camels, what the natural genetic diversity within a population would have been is not clear.

Another difference is the ability of these wild camels to drink saltwater slush, although whether the camel can extract useful water from it is not yet certain.

The feet are very tough, as befits an animal of extreme environments.

These camels are migratory, and their habitat ranges from rocky mountain massifs to flat arid desert, stony plains, and sand dunes.

Body mass can range from 300 to 1,000 kg (660 to 2,200 lb), with males often being much larger and heavier than females.

Its long, wooly coat varies in colour from dark brown to sandy beige.

Domesticated camels are unable to drink such salty water.

The Bactrian camel is the largest mammal in its native range and is the largest living camel.

Nearly two million years later, the Bactrian camel and the dromedary emerged as two independent species.

The Bactrian camel and the dromedary often interbreed to produce fertile offspring.

The wild Bactrian camel (Camelus ferus) was first described by Nikolay Przhevalsky in the late 19th century and has now been established as a distinct species from the Bactrian camel (Camelus bactrianus).