Sunday, May 3, 2015

44. Why do crabs walk sideways?


All crabs have ten legs- eight for walking and two with powerful pincers for picking up food. Crabs scuttle sideways along the shore and sea-bed. The sideways movement helps to prevent them tripping over their own legs! Large species of crab move only slowly, but small ghost crabs can scurry along the shore at a fast clip.

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