The chocolaty brown buck is chewing the vegetation, cutting grass and leaves with his sharp incisors at front. Then suddenly, reacting to a sound I cannot hear, he stands on his hind legs. Then he thumps a warning on the ground with his long hind foot, before tearing off to the safety of his underground warren. His doe and their young kittens are already safely beneath the soil, protected by the sandy earth around them. The kittens are pink, helpless and blind, born into chamber lined with fur from the doe. They suckle milk until they are.independent at four to five weeks old.