The seemingly indestructible fists of the #mantisshrimp can take a punch
When a team of researchers from Northwestern studied the dactyl clubs of one mantis shrimp species, they found that they have layered structures that selectively block sound waves, acting as protective gear against vibrations that could otherwise harm the shrimp. These types of structures, known as phononic mechanisms, filter out sound waves that could otherwise cause nerve and soft tissue trauma.
https://arstechnica.com/science/2025/02/the-seemingly-indestructible-fists-of-the-mantis-shrimp-can-take-a-punch/

The seemingly indestructible fists of the #mantisShrimp can take a punch: Specialized structures in the animal's claws can seemingly absorb impact, 20250222,
by Elizabeth R,
https://arstechnica.com/science/2025/02/the-seemingly-indestructible-fists-of-the-mantis-shrimp-can-take-a-punch/

“They also fired ultrasonic and hypersonic lasers at pieces of dactyl clubs …”
— wut? Now need to find what it is; guess: lasers-caused super speed USB^Wsound — initial try via DuckDuckGo found related to the guess but seemingly not directly related.

One of my unadulterated joys of existence is knowing we live in a universe where an animal exists that is able to punch so hard underwater, they literally become anime characters.

When those bubbles implode, they release light and heat energy so extreme that, for a fraction of a second, the water immediately surrounding the punch zone becomes as hot as the Sun.

This video on YouTube from Simone Giertz might be worth your time. #MantisShrimp

http://youtu.be/bmoPYnwPKKY