The elephant seal's crushing head-butt is a killer skill, but the bites of both the Amazonian giant centipede and the vampire bat are horrifying.

The Brazilian yellow scorpion is one of the species' most venomous, but a tiny, parasite-bearing snail has a much bigger and more devastating effect.

The dive-bombing harpy eagle feeds on monkeys and wild pigs, while the maned wolf is more the victim of bad PR than an actual threat.