@briannadignard87: Living fossils! We’re talking about species that haven’t changed in millions of years, like horseshoe crabs, coelacanths, goblin sharks, platypi, and even aardvarks! Coelacanths have even more distinction as they are known as Lazarus species, species that disappeared from the fossil record to pop up again later. Scientists thought the coelacanth went extinct 65 million years ago but then one was found in the 1930s! #learnontiktokcontest #stem #Science