What is a hermit crab? There are over 800 species of hermit crabs worldwide, and almost all are ocean dwellers—though people are likely most familiar with the dozen semi-terrestrial species ...

and published online. Scientists said they were "heartbroken" to see the extent to which the animals were living in our rubbish. They said two-thirds of hermit crabs species were pictured in ...

You've heard of the Christmas Island red crab migration. But what about the blue one? Christmas Island's blue crab migration is low key, even for locals.