Every now and then , the Internet " discovers " something you just sort of assumed everyone knew .

Like , for model , the fact pufferfishinflate themselves with waterand not aerate . It seems logical that people would assume that fish   – which famously remain underwater when they are not beat   – fill up with water system when they inflate themselves .

But seemingly , huge swathes of the Internet ascertain their information on globefish from the underwater grade inSuper Mario .

But this latest uncovering is one that is a little more corner , and a lot more interesting . Today ’s matter of net discussion is carcinization , or how everything in nature ( well , just crustaceans , thankfully ) seems to want to be a crab .

Yep , like technical school bros repeatedly trying to invent a new character of transport andaccidentally reinventing the omnibus , development seems to keep spitting out creature that look like crabs . First   coined as a termin 1916 , carcinization was earlier defined as   " one of the many attempts of nature to evolve a crab " .

Convergent evolution is when similar features evolve in mintage from dissimilar time period or regions that have a like build or purpose , despite the last common antecedent of the animals or plants not having that finicky feature . Think how echolocation has evolved in both whales and bats , and mechanisms for flight evolved in birds , insects , pterosaur , and bat . ( Get your own phylogenesis , bats ) .

It happens when animals and plant have to adapt to similar environments or ecological niche and stop up with like solution . Crab - like forms are reckon to have happened independently at least five times in   decapod crustacean , including porcelain crabs , haired stone Cancer , andcoconut crabs .

It turns out the crab configuration is so good , many   crustaceans are obtain in on the action .

It seems that people will accept convergent evolution in many coinage , but they draw the ancestry at carcinization .

Others have embraced our crab overlords , or at least turned them into a meme .

Since you ’re here and we ’re talking crabs , we ’re incessantly astounded that hoi polloi are n’t aware of bagger crabs . They have evolved a symbiosis with ocean sea anemone , by which we mean theyhold them in their claws like   boxing glovesand use them   to maintain themselves .

If one buy the farm , they merely cut the other one in two to make two again .