The natural world is full of animals that seem to defy logic, blurring the line between reality and imagination. Some look like they were made from spare parts, while others behave in ways so unusual ...

Add Yahoo as a preferred source to see more of our stories on Google. What are these strange creatures washing up on Texas beaches, and why are they dying? Here's what the experts have to say.

British beaches have all the usual suspects like shells, seaweed, and maybe the odd crab scuttling for cover. But look a little closer, and the shoreline starts to feel more like another planet.