https://en.m.wikipedia.org/wiki/Carcinisation
Carcinisation (American English: carcinization) is a form of convergent evolution in which non-crab crustaceans evolve a crab-like body plan. The term was introduced into evolutionary biology by L. A. Borradaile, who described it as "the many attempts of Nature to evolve a crab".
Pretty neat
Shrimp vs prawn is colloquial, not a scientific classification, so it varies from place to place and person to person, and depending on the specific animal we're talking about, but in general
The ones we call shrimp tend to:
And the ones we call prawns tend to:
Alpaca > Llama > Camel
Yeast > Mold > Brie Rind > Chanterelle
Algae > Fern > Sunflower > Eucalyptus Tree
Squirrel > Raccoon > Bear
Deer > Elk/Caribou > Moose
Cow > Yak > Bison
Magpie > Crow > Raven
Ant > Termite > Bee > Hornet
Tick > Spider > Crab
Fox > Coyote > Wolf
Pillbug > Horseshoe Crab > Armadillo
Salamander -> Turtle -> Seaturtle
Duck -> Flamingo -> Ostriche
Pidgeon -> Parrot -> Turkey
Hamster -> Ferret -> Prairie Dog
Chameleon -> Komodo Dragon -> Alligator
Mosquito -> Anteater -> Elephant
Anchovies -> Salmon -> Dolphin
Fox -> Wolf -> Bear
Cat -> Cheetah -> Mountain Lion -> Tiger
Worm -> Eel -> Snake -> Anaconda
Bump! Bump! Bump! Did you ever ride a Wump? We have a Wump with just one hump. But we know a man called Mr. Gump. Mr. Gump has a seven hump Wump So… if you like to go Bump! Bump! just jump on the hump of a Wump of Gump.