Thousands of crabs swarm off coast of Panama – video

Red crabs, also known as tuna crabs or pleuroncodes planipes, swarm at the Hannibal Bank Seamount, off the Pacific coast of Panama. To see such huge numbers of crabs so far south is very unusual, according to biologists at Woods Hole Oceanographic Institution in Massachusetts, who have documented the phenomenon

• Diving scientists record 'cloud' of thousands of swarming crabs