"The Formation of Vegetable Mould through the Action of Worms," the great biologist Charles Darwin stated that, "It may be doubted whether there are many other animals which have ... species and ...

Evolution is responsible for some weird animals ... like a worm with two little arms! It's known as a Bipes biporus or the five-toed worm lizard. Their little hands are perfect for burrowing ...

These segmented invertebrates live in the soil and are known for their ability to decompose organic matter, such ... common earthworm (Lumbricus terrestris), is known for its deep burrowing ...