"Sand bubbler crabs live in burrows in the sand, where they remain during high tide. When the tide is out, they emerge on to the surface of the sand, and pass the sand through their mouthparts, eating detritus and plankton, and discarding the processed sand as pellets, which cover the beach. The crabs work radially from the entrance to their burrows, which they re-enter as the tide rises and disintegrates the pellets.In each burrow, the crab waits out the high tide in a bubble of air.The materia

I had a long discussion with @awsammofficial about whether or not hermit crabs are actually crabs. He's on the side of "actual crabs" and I am not. Where do you weigh in on the crab VS not crab debate? | Bad Science Jokes

'Although #crabs live in #water, not all crabs can #swim. Crabs are #amphibious #animals and can move through the water. Only a few crab species have the ability to swim. The majority of them move through the ocean floor by walking or running. Certain species like blue crab found in the #Atlantic coast display swimming. They use their improved rear legs to swim as they are shaped like paddles. Crabs have ten leg pairs. In this, the foremost ones are claws. Crabs of the family #Portunidae have sp