Adults are very defensive of nesting area and will even attack humans who come too close.

Brown bears seldom attack humans on sight, and usually avoid people.

They are known to hunt in groups and will attack humans.

It will attack humans and large predators, usually striking the top or back of the head.

Common chimpanzees have been known to attack humans on occasion.

They just don't attack humans for no reason at all.

Anyway, I don't believe either of them attack humans unless there's blood in the water.

They are fearless and bulls may sometimes attack humans who get too close to them.

Some animals are dangerous because they might attack humans.

Bears are known to attack humans for many reasons but actually they avoid attacking.