Nature can be a dangerous place, even for animals that seem borderline invincible. For instance, hippos may be massive mountains of muscle with a gaping maw, but that doesn't stop a sufficiently ...

Add Yahoo as a preferred source to see more of our stories on Google. These powerful animals sit at the very top of the food chain with virtually no natural enemies to fear. From massive ocean giants ...

When danger approaches, many creatures seem to follow the ancient proverb that “the enemy of my enemy is my friend.” Researchers have recently been finding subtle ways that animals communicate with ...