Mole Crab (Sand Flea)
They eat jellyfish tentacles
Crabs
Sand Crab
The sand crab burrows beneath the sand with its tail
Snow Crab
Snow crabs communicate with each other by waving or drumming their pincers.
Strawberry Hermit Crab
When strawberry hermit crabs find shells that are larger than their own, they gather in a line from biggest to smallest. Once the biggest one sheds its shell, the next one in line will claim it, which is repeated down the line.
Vampire Crab
Vampire crabs do not depend on saltwater for their development; instead, they live near freshwater rivers and in forests amongst rocks and dense vegetation.