Since humans are slower and weaker than some predators, why has no animal evolved to prey on humans?

Answer on @Quora by @AdrianaHeguy to Since humans are slower and weaker than some predators…. – Xochielt Sanchez

Answer by Adriana Heguy:

An animal in fact evolved who specializes in killing humans: Homo sapiens.

We are a top predator. Top predators rarely have predators that specialize in killing them for the purpose of eating them. Lions are not prey items for other carnivores, unless we are talking about the occasional cub killed by a hyena. The threat for lions is not other predators, but rather, the scarcity of prey.

We may be weak and slow, but we evolved as social animals with the protection that the social group or tribe affords. Also, our ancestors developed a complex form of intelligence that allowed them to find ways to fend off predators using weapons, for example.

Of course, a predator that catches a human unaware and far from the group will kill and eat the human as it would any other prey. Tigers for example do this in India and Bangladesh. Pumas and jaguars occasionally kill and eat humans. If babies are left unattended, a wild animal such as a bear can carry the baby away and eat him (unfortunately, this has happened).

But there are no predators who would target a human group as prey, unless we are talking about a very small group of humans with no weapons.

Since humans are slower and weaker than some predators, why has no animal evolved to prey on humans?

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