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Mantis Shrimp



Category: Invertebrates



The mantis shrimp is not actually a shrimp, but a different kind of crustacean of the order Stomatopoda, known for its aggressiveness and formidable weaponry. It possesses extremely sharp, powerful claws that can split a human finger in two, with larger species of mantis shrimp able to break aquarium glass with a single strike! Mantis shrimp are voracious predators found in tropical and sub-tropical waters. 

But while the mantis shrimp’s claws understandably get much of the attention, their strength and capacity to cause damage at least fall within the realm of things we can perceive. We can see an injured thumb or shattered glass and understand what it means, but with their extraordinary eyes, the mantis shrimp may be capable of seeing colors we can’t even imagine!

Their compound eyes have 16 color receptive cones (compared to the 3 found in humans), and are capable of perceiving polarized light and multispectral images. Each eye is divided into three regions, giving each eye trinocular vision, meaning that even missing an eye, a mantis shrimp still has depth perception. And as if that isn’t enough, researchers recently discovered that mantis shrimp eyes can even see neurons firing and detect the reflections off of cancer cells!


Data & Facts

Scientific Classification
Kingdom - Animalia
Phylum - Arthropoda
Class - Malacostraca
Order - Stomatopoda

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Interesting Animal Facts

Cephalopods: Masterminds of the Ocean.

Octopi, cuttlefish, and squids - all cephalopods - have been observed engaging in amazing feats of intelligence (perhaps unsurprising, as cuttlefish and octopuses have the highest brain-to-body mass of all invertebrates). Their suction-cup covered arms are dexterous, and octopuses have been observed putting them to use throwing rocks, opening screw-top jars, even picking up and gathering coconut shells to build fortresses for themselves. Squids, for their part, have been observed hunting cooperatively and are able to communicate with one another via color changes, patterns, and flashing to one another - sometimes using different sides of their bodies to broadcast different signals to multiple squids! Just how smart are they? As they are typically elusive and so very different from humans, we aren’t sure yet - but we do know the question is not “Are they intelligent?” but “How intelligent are they?”

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