Fiddler crabs have one massive claw, which they use to communicate and impress mates!
The coconut crab is the largest land-living arthropod in the world.
Blue crabs are prized for their sweet meat and are common along the U.S. Atlantic coast.
This crab has the longest leg span of any arthropod—up to 12 feet!
Hermit crabs don’t grow their own shells—they find and borrow snail shells!