In fact, it's happened so often that there's a name for it: carcinization. So why do animals keep evolving into crab-like forms? Scientists don't know for sure, but they have lots of ideas.

Why do crab-like creatures keep turning up on the evolutionary tree, and how can you tell a "true crab" from a false one?

Medically reviewed by Amelia MacIntyre, DO Pubic lice (Phthirus pubis), also known as "crabs," are an insect infestation that commonly affects the genital area of humans. It's challenging to ...

The Humboldt Crabs will be making their much anticipated return to the Arcata Ball Park, when they host the Lincoln Potters for opening night on Friday, June 4.

What does the devil look like? Discover the historical origins for Satan's frightening appearance.

What does someone with mental illness look like? That's a trick question. There is no one face of mental illness, and it crosses boundaries of age, sex, race and economic status.

What a vagina should look like Everyone’s vagina will look slightly different as far as color, shape, and size. That’s why “healthy” may look slightly different for everyone.

Researchers working off the coast of Panama have captured unprecedented footage showing thousands of red crabs swarming together in the oxygen-deprived waters just above the seafloor.

But a surprising number of creatures either are crabs or look a lot like them. For example, a hermit crab has a distinctly crab-like appearance but is not technically a real crab.