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East the Namib, to the interior, looks the world completely differently. Here there are open water places, which make possible only a surviving for the African large animal world. Elephants, lions, Tuepfelhyaenen and leopard, them all became in the wolf bay region at the coast in few days verdursten. Their circulation area ends therefore at the eastern foot of the dunes. The sand barrier of the Namib is and remains for it an insurmountable obstacle. Brown Hyaenen verzehren the brain mass of the seals, there this much liquid contains at expense of the small seals at the coast lives the brown Hyaenen in such a way without each competition pressure. Neither robbery cats nor their large relatives, the Tuepfelhyaenen, make here the booty for them contentious. But how they create it, not to verdursten? Seawater is finally also ungeniessbar for it. The mystery solution: Brown Hyaenen verzehren the brain mass of the killed seals with preference, and much liquid particularly contains. Often even only this part of the booty is taken, remains for everything else being appropriate. From our view this may appear cruel. For the Hyaenen it is a successful strategy, over not to verdursten. Like that it is the seal new generation, which guarantees surviving the brown Hyaenen at the coast of the Namibwueste at least for the summer time. The seal children do not know thirst, it by its mothers with milk are supplied. Sometimes Hyaenen more seals than it kill for need "excessive killing" again and again find to Ingrid weasels dead seal babies, who are outwardly completely intact. If only the head bones are destroyed, them know immediately, what happened. "Surplus Killing", "excessive killing", call scientists this behavior, which was not only proven with brown Hyaenen. Day for day collects Ingrid the dead animals and takes up all scientifically relevant data. Ingrid collects all data, around the phenomenon of excessive killing on the trace to come as in the intoxication kills brown Hyaenen again and again small seals, many more than it for needs. For raubtiere no unusual behavior. For the doctor work of the Wissenschaftlerin the observed "Surplus Killing" is a further important phenomenon, which proves the change of behavior of the brown Hyaenen from Aasfressern to raubtieren finally. At the end of the summer, if the seal children became large, a heavy time begins for the Hyaenen. The robbers still touch by the colony, but ever more frequently the booty courses end in such a way, like them began - with empty stomach. Thus nothing different one remains for the Hyaenen, than nourishing itself in the winter again from carrion to. They will only take up their passion as active hunters for the next throw season of the seals again
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