These small #birds have been much studied for their ability to achieve what's called unihemispheric slow-wave sleep during their 2-week migrations, a specialized type of sleep where 1/2 the brain rests while the other 1/2 remains alert. So far,
These small #birds have been much studied for their ability to achieve what's called unihemispheric slow-wave sleep during their 2-week migrations, a specialized type of sleep where 1/2 the brain rests while the other 1/2 remains alert. So far,