When did birds evolved from reptiles?
All living things change over thousands of year to chances of survival. This process of change is called evolution. Birds evolved from reptiles about 150 million years ago. Their feathers developed from the scales which covered their ancestors. Wings gradually evolved from front legs. The first bird was the ‘Archaeopteryx’. It was about the size of a gull and had the sharp teeth of a lizard. It was a poor flier and used to climb trees and then glide away. Scientists have estimated that there may be over 1 lakh million birds in the world altogether. Their success is largely due to their ability to fly, which gives them versatility in finding food and places to live.
