Friday, August 22, 2008

Facts about Bobby the Mantis Shrimp



















Crazy facts about Bobby the Mantis Shrimp:
1. Bobby is a member of the order stomatopoda, and is neither a mantis nor a shrimp, although he closely resembles both of them.
2. One of his interesting features is his claw. Around 400 species of mantis shrimp are divided into "spearers" and "smashers." We think that the Bobster might be a "spearer" but he was punching a lot so who knows.
3. The smashers use their claw to punch prey. The punch delivered has roughly the acceleration of a 22-caliber pistol.
4. They have been known to break the glass in an aquarium, all from one little punch from ye old fist!
5. The claw hits its prey with such great force that it actually causes cavitation bubbles between the appendage and the striking surface. The collapse of these cavitation bubbles produces measurable forces on their prey, in addition to the instantaneous forces of 1500 newtons that are caused by the impact of the appendage striking the surface, which means that the prey is hit twice by a single strike: first by the claw, then by the collapsing cavitation bubbles!
These facts were brought to you by: Wikipedia.com's article on the Mantis Shrimp.

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