Siinä on kyllä aika peto. Iskun kiihtyvyys ja tuotettu voima myös tuon kokoiselle nilviäiselle aika huimia. Iskun lisäksi syntyy paineaalto ja joskus valonpurkauksia.
"In smashers, these two weapons are employed with blinding quickness, with an acceleration of 10,400
g (102,000 m/s2 or 335,000 ft/s2) and speeds of 23
m/s from a standing start.
[10]Because they strike so rapidly, they generate air bubbles between the appendage and the striking surface—known as
cavitation bubbles.
[10] The collapse of these cavitation bubbles produces measurable forces on their prey in addition to the instantaneous forces of 1,500
newtons that are caused by the impact of the appendage against the striking surface, which means that the prey is hit twice by a single strike; first by the claw and then by the collapsing cavitation bubbles that immediately follow.
[11] Even if the initial strike misses the prey, the resulting
shock wave can be enough to stun or kill.
The impact can also produce
sonoluminescence from the collapsing bubble. This will produce a very small amount of light within the collapsing bubble, although the light is too weak and short-lived to be detected without advanced scientific equipment. The light emission probably has no biological significance but is rather a side-effect of the rapid snapping motion.
Pistol shrimp produce this effect in a very similar manner.
Smashers use this ability to attack
snails,
crabs,
molluscs and rock
oysters, their blunt clubs enabling them to crack the shells of their prey into pieces. Spearers, on the other hand, prefer the meat of softer animals, like
fish, which their barbed claws can more easily slice and snag." -
https://en.wikipedia.org/wiki/Mantis_shrimp
Tämä keihästävä variaatio on kanssa aika mahtava.