chickens
Octopi, birds, fish, bigger crabs, and mammals (believe it or not, including man)that is right young 1
Crabs have few natural predators due to their protective shell. They are most susceptible to attacks from fellow crabs for shells or for nutrition.
You can tell a land hermit crab from a water hermit crab by looking at the claws/arms or legs. If it is a water crab it will be blueish and if land crab it will be pinkish purpleish. If your crab is...
No, nor the other way around. One breaths air, one breaths under water for their entire life.
Some say they are like snails & can produce with out a mate. Land hermit crabs have them on land & water ones in water.