Question

"Birds have evolved from reptiles" State evidence to prove the statement.

Give the evidence that the birds have evolved from reptiles.

Answer 1

Fossils provide evidence of evolution. A fossil bird called Archaeopteryx, which lived in the Late Jurassic Period around 148–150 million years ago, had feathered wings like that of birds and a long bony tail, jaws with sharp teeth and various skeletal features like that of reptiles. Thus, Archaeopteryx is considered a connecting link between reptiles and birds.

Some dinosaurs had feathers that provide them insulation in cold weather; however, they could not fly using those feathers. Birds seem to have later used feathers to fly. This, of course, means that birds are very closely related to reptiles because dinosaurs were reptiles. Hence, it suggests that birds have evolved from reptiles.

Answer 2

Birds have evolved from reptiles as the connecting link between reptiles and birds is Archaeopteryx (flying dinosaur). Also, there are some similarities in birds and reptiles. Birds have four-chambered heart, which is also a feature of some reptiles; both birds and reptiles are oviparous and have separate sexes and internal fertilisation occurs in both  birds and reptiles.