The shape and size of the hump is indicative of the animal's condition. The preferred diet of camels is succulent herbage, high in water and, often, salt content. Their long legs and neck enable them to browse trees much further from the ground than any other ground-based herbivore in Australia. Reproduction Camels live for up to 50 years and may actively breed for 30 years. Females come on heat several times a year.
Twins are rare.
Males come into season from one to three times a year, each time for several weeks. They develop large patches of sticky smelly excretion on the backs of their heads when in season and are also particularly intractable at this time. The main problem caused by feral camels is destruction of fences. Camels pass through fences by leaning on them until they collapse, and will often demolish long lines of fence for no apparent reason. They may also foul or damage water points, especially in drought.