Ten Incredible Two-Headed Animals

Generally, one head is enough for any living creature, but the mythological hydra had more than its fair share - just perfect for slaying any ancient Greeks unwise enough to cross its path. Of course, many-headed beasts have made plenty of appearances in modern-day fiction.

Yet, as fantastical as it might sound, animals with two (or, more rarely still, three) heads exist in real life as well. And while they may not be as funny, terrifying or gigantic as their fictional counterparts, they're definitely just as strange.