How Do Mantis Shrimp Work?

hour blow that's over nine per hour. Basically, this punch is so speedy that it forms cavitation bubbles that creates such intense shock waves that the bubbles alone can stun or kill prey instantly or crush aquarium glass. And if defending itself, Amanda's shrimp could cut through a human's finger within milliseconds, an injury that can necessitate amputation. That's why marine biologist Katie Watson says it's best to keep distance. She said, nicknamed the thumb splitter, they can cause painful

injuries if they're not treated with care. They can also shatter fins or a camera lens, so don't get too close and as a fundamental rule of diving, look but don't touch. Muscle power is only one factor behind the Mandas shrimp's ferocity. The crustacean has a system of biological springs, latches, and levers that work in tandem to deliver piercing strikes. This is the fastest limb movement in the animal kingdom, says Watson. But that's not all. Manda's shrimp eyes are

a scientific wonder. Like all crustaceans, they have compound eyes, but further than that, they have the most complex visual system in the known world, with up to sixteen photo receptors and the ability to see ultraviolet, visible and polarized light. They're the only animals known to see circularly polarized light, and they can see colors and images accessible to no other animal on Earth. And that complex visual system is

the mantus shrimp's key for communication. Since the crustaceans have the power to see and alter polarized light that other animals can't, they use this light manipulation to communicate, almost like a secret code. In research published in the journal Scientific Reports in the researchers discovered that mantus shrimp polarizers alter light across a structure, not through its depth like

typical polarizers. Most other creatures can't see this type of light, so those that use it are less likely to attract predators or those competing for food. This realization was more than just mind blowing. Scientists say it could lead to new optical human technologies across everything from cameras to sunglasses. But mantus shrimp also speak through rumbles. At dawn and dusk, mandus shrimp make rumbling, growling grunt noises to defend their

territory and attract mates. Researchers describe this as a low frequency rumbling that's created via muscle vibrations. Fellow manta shrimp here those rumbles through sensory body hairs. So far, scientists have only witnessed males producing these sounds, though manta shrimp colors run the gamut from browns to vibrant reds, blues, and greens. Some species are even biofluorescent, a trait that lets the crustacean absorb blue light as it hits their bodies,

then re emit it as a different color. Watson said the wavelengths of their fluorescent coloration travels better under water than color pigmentation, The fluorescence increases the apparent size of the manta shrimp, which helps attract females during mating and warns off competitive males. She also noted that this illumination may attract prey, but research to prove the phenomenon is ongoing.

Despite all their fascinating qualities, though you'll rarely see manta shrimp at aquariums, but back in two thousand one, too, manta shrimps sneakily made their way into the Monterey Bay Aquarium by hitchhiking on imported rocks. The result was like a Sci Fi thriller. Crabs, snails, and barnacles essential to the aquarium ecosystem and filtration went missing. But the aquarium couldn't put its workers at risk trying to catch the

manta shrimp bare handed. Instead, they had metal tongs at the ready to grab the shrimp when exposed, then place it with another manta shrimp that snagged the year prior. And this is not an uncommon scene when manta shrimp sneak into aquariums. That's why the crustacean is rarely kept in captivity when they are aquariums need shattered proof, acrylic blast and a tank free of critters. Given their threatening traits, and the chance of actually seeing one in nature is

also pretty low. Manta shrimp are remarkable hiders. They spend most of their time tucked away in rocky and sandy burrows. Manta shrimp prefers shallow marine waters, mostly in tropical and subtropical regions. They can also live in coral reefs or rock crevices. These habitats are ideal hunting grounds. The manta shrimp stays tucked away until prey gets close, then boom.

It strikes instantly, kills and feasts all in mere seconds. However, Earth's warming oceans threaten nearly all sea life, and the manta shrimp is not spared. Watson said. Calcified marine organisms like the manta shrimp face a double edged sword as climate change is projected to increase ocean warming and acidification. This is predicted to result in increased energy demands, growth restriction,

physiological stress, and changes in mineralization. For manta shrimp to maintain the integrity of their highly specialized weapon, appendage, precise mineral composition and mechanical properties in different layers of exoskeleton are needed. She said that some research indicates that manta shrimp can tolerate long term increases in temperature and a certification, but the degradation of coral reefs paired with over fishing could affect them just like other reef dwellers lost habitat

and decreased vertebrate and invertebrate diversity. Just another reason to support personal and public policies to help mitigate climate change. Today's episode was written by Stephanie Vermillion and produced by Tyler Clang. For more in this and lots of other punchy topics, visit houstuff works dot com. Brain Stuff is production of iHeart Radio. For more podcasts my heart Radio, visit the iHeart Radio app, Apple Podcasts, or wherever you listen to your favorite shows,