The swimming legs are my active then swimming. The food is picked up by the chelae and passed to the mouth when the grinding is done, during this process ad at rest they stand high on tiptoe. They can also walk forward but they have to make an extra or two extra step. Laterally the gait is natural. The adaptation of the limbs for the different mechanical purposes is clear and distinctive. Lobsters rest in prominent places or hide under overhanging rocks always with the tail under protection, a few more or less under, at complete under but with the edge of the tail touching the ground. The posterior pair of limbs may often be seen projecting through the shell above the surface of the abdomen; when at rest the three pairs of small limbs are constantly bit shut over their eyes. What is the object of these movements. Can it be a due way in front. Crickets and Lobsters are constantly on the alert. Dangerfully present and ever ready for the attacks among themselves. Spider crabs are do tiptoe walkers, all men or less guard their footing again. They put the enemy in front of them.