Some of the saurischian dinosaurs evolved into extant birds the saurians gave rise to extant lizards and snakes i have no opinion on where the turtles came from the mammal-like reptiles gave rise to extant mammals, including homo sapien.
What did the lizards and snakes we have today evolve from snakes evolved from a lizard snakes and lizards are classified as squamates what is a great website for pictures of lizards evolving into snakes please help how did snakes evolve did snakes ever have legs more questions.
Though lots of reptiles today are apex predators, many examples of apex reptiles have existed in the past reptiles have an extremely diverse evolutionary history that has led to biological successes, such as dinosaurs , pterosaurs , plesiosaurs , mosasaurs , and ichthyosaurs.
Clearly, these cold-blooded, slithering, legless creatures evolved from four-legged reptilian ancestors, either small, burrowing, landbound lizards (the prevailing theory) or, just possibly, the family of marine reptiles called mosasaurs that appeared in the earth's seas around 100 million years ago.
If reptiles evolved into mammals what might mammals evolve into update cancel ad by honey just as turtles, pterosaurs, lizards, snakes, crocodiles and birds are all still diapsids (reptiles) there’s no way to predict what adaptations might evolve in synapsids in the future. Indeed, lizards should not have evolved into snakes at all, since losing their legs should have been decidedly disadvantageous – just as if we were to lose our legs nonetheless snakes move around with amazing facility far from becoming extinct in the great ‘struggle for existence’, they occur on all but one of the continents, in cold.
Lizards had to be creative to insure their survival the dinosaurs, because of their size where the bullies of the earth if lizards wanted food they had to some how sneak around the big dinosaurs in order to avoid becoming food themselves a species of lizard known as the ear-less monitor seemed very well adapted to counteract this problem. When the supercontinent pangea broke up into separate land masses, it allowed the squamates – a reptilian order that includes all lizards and snakes – to diversify.