We live in an amazing world with some of the most diverse forms of life one could imagine. We have plants that eat insects, insects big enough to eat birds, birds that can dive into water to grab fish and so on and so forth. With this vast amount of fauna, it only makes sense to have animals share their feelings and frustrations in one of the ways we do: through song. With that, I present to you seven animals that should be singers for metal bands. Grab your leash and check it out after the jump!