TED Article about world fastest moving animal : The peackock mantisshrimp.

[William Gaatjes]

Sheila Patek: Measuring the fastest animal on earth using cameras with 20000fps recording speed.
She explains how the modified claw works to be able to punch. I get the impression that it is similar to how the modified claw works of the pistol shrimp.

https://www.youtube.com/watch?v=RHTTIg7HY80

 

[BoomerD]

Yep...mantis shrimp are fast...and wicked. They're called "thumb splitters" for a very good reason.
Most saltwater aquarists are familiar with them...many people actually set up special tanks for them.

 

[William Gaatjes]

Yeah, it can break the bones in fingers easily.

And the Mantis shrimp creates caviation bubbles as well, just as the pistol shrimp. I never knew that. So first there is a blow, then there is in front of the impact point a cavitation bubble that is just as destructive.
First a push, then a pull on the material that gets hit.

Cavitation is very interesting. Never realized it is such an issue with screw propeller that run to fast.
https://en.wikipedia.org/wiki/Cavitation

In all honesty, if i go dating again i want to date biologists or chemists or molecular biologists. Lot of interesting material.

 

[foghorn67]

I'm fascinated by that parabolic thing.