DNA provides 'smoking gun' in the case of the missing songbirds

It sounds like a tale straight from 'CSI:' The bully invades a home and does away with the victim, then is ultimately found out with the help of DNA evidence. Except in this instance the bully and the victim are two species of songbirds in northwest North America, and the DNA evidence shows conclusively that one species once occupied the range now dominated by the other...

Read the whole article on

More from