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The hyena is generally a scavenger, but it can also hunt prey if it wants to. During times of high human death toll (war, for example), it can develop a taste for human flesh. If corpses are not plentiful enough, it has been known to take to hunting, and will deliberately pursue human quarry to satisfy its hunger
source by:http://www.conservationinstitute.org/top-10-dangerous-animals-in-the-world