5 animals with prehistoric roots
Some people were kidnapped after the discovery of dinosaur fossils; they wondered how early humans lived with animals.
This means that early humans shared the earth with animals like dinosaurs and others. Some haven’t changed much over the past tens of millions of years, while others are practically unrecognizable.
Crocodiles
Crocodiles are big, creepy crawlies, reptiles, aren’t they? So there is a heritage crocodiles share with dinosaurs as part of a group known as archosaurs (“ruling reptiles”), who date back to the Early Triassic period (250 million years ago). The earliest crocodilian, meanwhile, evolved around 95 million years ago, in the Late Cretaceous period. But now the modern-day crocodiles descended from prehistoric alligators such as Deinosuchus, low-to-the-ground water-dwelling predators with a long snout, a powerful tail, and lots and lots of teeth.
Shark
Sharks are now said to be modern-day dinosaurs because they’re much older. Their ancestors evolved into recognizably shark-like shapes over 450 million years ago. The researchers said that during the Silurian period they have survived every major extinction event since the seas were filled with trilobites.
Crabs
They’re not even lizards, and they were not involved in birds, but crabs deserve a special mention in this list for developing the kind of personal armory that, pound for pound, would make an Ankylosaurus think twice.
Chicken
In 2003, Jack Horner and Mary Schweitzer were attempting to extract a giant fossilized T. rex femur from a dig and had to break the bone in half to do so. Inside, they found molecules of the structural protein collagen, which takes different forms in different animals, acting as a kind of protein fingerprint.
As there was no other dinosaur collagen to work with, the closest match was found in chickens and ostriches—two species that have surprisingly little in common, genetically speaking—with alligators coming in third.
Snake
We all know the way snakes evolved, and we know the value of the property we use, especially the legs and the bones of the skull. Michael Caldwell and Michael Lee in Nature) can be considered a primitive snake. 10 It has an elapine slender body and mobile skull with extra joints for larger prey, but also a working pelvis and hind limbs.
By ASH_CK
