These incredible creatures will do just about anything to survive.
To cut it in the animal kingdom, you have to be tough—really tough. From withstanding brutal climates to fending off ferocious predators, surviving in the wild is no small feat. But a few cunning creatures have developed crazy traits and habits to stay in the game. Here are 40 of the most genetically gifted, physically freakish, and just plain amazing animals in the world.