They let off a single, sharp whistle when startled and
may retreat in a series of stiff-legged bounds. Each time
its hooves hit the ground, it gives off a further short
whistle, and it is from this that it is thought to have
derived its name. The force of its legs hitting the hard
terrain is protected by the animal's shock absorbers: well
developed, rubbery pads which are at the back of each hoof.
They occur singly, in pairs, or in family parties of three,
except during the dry season when groups of up to six may
be seen together. Dik-diks are territorial, and mark their
territories using a secretion produced by glands which are
found in front of their eyes, as well as with dung and urine.
Their main predators are leopards and caracals.