This species, seen here at Dinah's Beach in Milne Bay, Papua New Guinea, is twice the size of its California cousin. Its relatively small claws carry amazing power: One claw is strong enough to break the glass of an aquarium in a single strike.

This shrimp toyed with the film crew, faking an emergence from its den only to hurry back inside. They finally nabbed this shot when the shrimp came out to spear its dinner and quarrel with a cardinalfish.