Packs a painful pinchShin-ichoro OkaBy Alice KleinIts handshake could crush your fingers. A giant crab from the Asia-Pacific region can lift the weight of a small child and has the most powerful claw strength of any crustacean. The coconut crab – Birgus latro – lives on islands in the Indian and Pacific oceans, and can reach a weight of 4 kilograms,...