They were both reptiles, meaning that they could lay eggs out of the water. Many of them probably had scales, as do snakes and turtles. In terms of locomotion, body chemistry and care for their young, however, dinosaurs were much more like today's birds. In fact, some scientists consider them so close that those creatures like T. rex are referred to by the modifier "non-avian dinosaurs."
They had long tails, scales, and laid eggs
Cannon
dinosaurs shared many features with todays lizards. they had skeletons with backbones. they had scales. many walked on four legs. but there differences between the two groups of animals. dinosaurs legs go almost straight down from their bodies. legs of todays lizards stick out more from the sides of the bodies. some dinosaurs share many features with birds. for instance, some dinosaurs had features and a wishbone! also, a few fossils have included more than just bones. these fossils have shown that some dinosaurs had a heart that is similar to a birds or a mammals heart. NOTE: ( i got this info from my science book )
they had the same brain
Lizards, turtles, and Snails.
Several animals resemble dinosaurs, but one of the most notable is the crocodile. Crocodiles share a common ancestor with dinosaurs and retain many primitive features, such as a long snout and a robust body. Birds are another group that directly descends from theropod dinosaurs, showcasing similarities in skeletal structure and behavior. Additionally, reptiles like monitor lizards exhibit features reminiscent of dinosaurs.
Today's lizards are thought to be similar to many dinosaurs in their body structure and functioning, as both groups are reptiles with scaly skin, ectothermic (cold-blooded) metabolism, and similar reproductive strategies. However, lizards are generally smaller, have more diverse diets, and exhibit a wider range of locomotion compared to many dinosaurs, which included large, dominant species with varied adaptations for different environments. Additionally, lizards are more adaptable to varied habitats, while many dinosaurs were specialized for specific ecological niches. Evolutionarily, lizards are considered a part of the archosaur lineage that diverged from the ancestors of dinosaurs, highlighting both a shared heritage and distinct evolutionary paths.
Dinosaurs and lizards both belong to a branch of reptiles called diapsids, which emerged in th early Permian period. In the early Triassic period the diapsids split into two main groups: archosaurs and lepidosaurs. The archosaurs were the ancestors of dinosaurs, pterosaurs (flying reptiles), and crocodilians. The lepidosaurs were the ancestors of lizards, snakes and a third, nearly extinct branch called sphenodonts.
The theropod dinosaurs share some similarities with birds, including a somewhat similar posture and possibly the same air sac based repository system. Many theropods also had feathers.
snakes: no legs, no visible ear, slow metabolism, sometimes constrict preylizards: legs, visible ear, faster metabolism, teeth, no fangsThere are no differences, a snake is a reptile. Reptile is the family and snake is the genus.
All around us. Birds are direct descendants of dinosaurs and share many characteristics with their ancestors including feathers. As for the rest of the dinosaurs 99% of all species that have lived on this planet have died out or evolved into something else. There is no reason dinosaurs should be any different.
While birds and dinosaurs share many similarities, the key differences lie in their skeletal structures. Dinosaurs have a more primitive structure, with separate openings for breathing and eating, while birds have a more advanced respiratory system that allows for efficient airflow. Additionally, birds have evolved lightweight bones and feathers for flight, traits that are not found in dinosaurs.