Monthly Nonfiction Reading Resposne - Bird, human tweets come from similar parts of the brain

Humans and songbirds share genetic changes affecting parts of the brain. That are related to singing and speaking. Neurologist Erich Jarvis discovered about 80 genes that turn on and off, similar to humans and songbirds. This gene occurs in brain regions that have the ability to imitate sounds. And to speak and sing. But it is not present in birds that can't mimic sounds. The ancestors of humans and songbirds split 300 years ago. Which suggests that the two acquired a similar capacity for song. I think that it is interesting that humans and birds have much in common. The two also have similar patterns in activity. I never would have thought that we would have so much in common.