The mantis shrimp is a small predatory crustacean and one of the most aggressive animals known. They can be divided into two main groups: spearers and smashers. Spearers have sharpy, spiny forelimbs that they use to stab prey, and smashers have clublike forelimbs that they use to crush prey. Mantis shrimps are somewhat intelligent and individually recognize the other mantis shrimps they have fought before. They live in burrows in coral, rock or mud.
Packs a Wallop
The punch of a mantis shrimp has about the same force as a 22-caliber bullet and can break aquarium glass, making them fierce predators.
Spearers attack soft-bodied prey such as worms, fish and squid. Smashers eat hard-shelled prey including clams, crabs and snails. Mantis shrimps often prey on animals much larger than themselves.
Mantis shrimps have the most sophisticated vision of virtually any creature. They can distinguish 100,000 different colors, while humans can see only 10,000.
Some species of mantis shrimps have long-term monogamous relationships, and pairs have been observed to stay together for as long as 15 years.
Movement and Communication
One species of mantis shrimp curls its body into a wheel to roll down beaches. It is the only animal known to use active wheel-like motion. Some shrimps also fluoresce, or light up, as a way to signal each other.
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