Thread by @harold_hawaiki

🧵 The Mantis Shrimp, is highly intelligent. They exhibit complex social behaviour. The eyes of mantis shrimp can detect both cancer & neuron activity.
Mantis shrimp can detect deep ultraviolet light to far-red light! M.S can attack at 23m/s with an acceleration of 10,400g...

The mantis shrimp can measure up to 38 cm and, contrary to what its English name (shrimp mantis) suggests, it is neither a shrimp nor a mantis. The reference to praying mantises is a better statement about the risk of digital amputation if you try to make your four o'clock

Mantis shrimp can detect cancer cells with their eyes.
Mantis shrimp-inspired camera provides second opinion during cancer surgery...
news.illinois.edu/view/6367/1572…

Vision in Mantis Shrimp
scholarblogs.emory.edu/artsbrain/2020…

In the shallow tropical waters of the Indian or Pacific Oceans (mainly).

Like mantises, squillas have ravenous legs. But theirs are so resistant that they inspire the military to make the armors of the future. And above all, their speed and strength are superpowers. As told in the comic book The Oatmeal, the squilla's ravenous legs move at the speed

of a bullet fired from a .22 caliber and can strike a prey in 1/3,000th of a second, with a force of 1,500 Newtons. One tenth of that speed, deployed by a human arm, "would be enough to send a baseball into orbit."

Such speed that it boils the water around the capturing legs and creates a shockwave that can kill a prey missed by the strike.
Their punch is so fast it results in ‘cavitation’ bubbles. This is a super heated bubble and small flash of light,

which for split seconds, also generates temperates of 4,400c (which is nearly as hot as the sun) in the surrounding water.
When the bubbles collapses, they cause an intense shockwave which is like a double punch & can stun, dismember or kill prey instantly,

even if the mantis shrimp misses the target.
Kept in an aquarium, crustaceans go on a rampage, dismembering and devouring crabs, shrimp, octopus & shellfish. They require special stronger aquariums.
Giant Smashing Mantis Shrimp VS Giant Crabs

When they encounter an obstacle they wish to move, they often try and punch their way out. They have also been known to attack their own reflection through the glass.

Squilla's also have the most developed color vision in the animal kingdom, with 16 types of color receptor cones in their retina. We have only three (red, blue, green) and our brain would be unable to process the visual information perceived by the 13 additional cones of squilla.

Their exceptional color perception is probably involved in their courtship rituals, which would justify the superb palettes displayed on their carapaces.

Eyes of mantis shrimp are located on the long stalks that can move independently.
Each eye has ‘trinocular vision’, which means it can gauge depth and distance on its own by focusing on objects with three separate regions.

Designing an Ultrasensitive Imaging System Based on Mantis Shrimp
comsol.fr/blogs/designin…
They are thought to have the most complex eyes in the animal kingdom and have the most complex visual system ever discovered...

They can see a special spiralling type of light called circularly polarised light that’s not been documented in any other animal. They also have a structure in their eyes that’s similar to technology found in DVD players, only much more advanced.

All mantis shrimp species can be divided into ‘spearers’ or ‘smashers’, based on the types of claws they have and tactics they use to kill the prey.

The mantis shrimp is not a shrimp, and it’s not related to the praying mantis, either. Instead, mantis shrimps are 450 different species belonging to the order Stomatopoda.

Their clubs have a special shock absorbent core which stops them from breaking.
Beneath their hard coated clubs, mantis shrimp have special layers of elastic polysaccharide chitin, which are positioned in a way to act as shock absorbers.

This structure is called a bouligand structure, and it keeps small cracks from becoming a full break. en.wikipedia.org/wiki/Bouligand…