The colorful mantis shrimp Gonodactylus smithii. Researchers compare mantis shrimp to "heavily armored caterpillars."
The peacock mantis shrimp Odontodactylus scyllarus from the Indo-Pacific boasts strong, hammer-like claws.
Peacock mantis shrimp are solitary hunters, capable of swinging their claws with a force equal to a .22 caliber bullet.
A mantis shrimp guards a raft of pink eggs.
Peacock mantis shrimp are known for their complex visual system.
Peacock mantis shrimp are highly territorial.
A view of the colorful peacock mantis shrimp body.
Peacock mantis shrimp are not shrimp, but their shrimp-like appearance (and tendency to attack like a praying mantis) gave them their name.