Trees become speakers in a fracked park -- amplifying noise by echoing off branches. Owls, raccoons, coyotes, bats, red fox ...

Most birds stop singing when the sun goes down, but for some, the concert is just starting. Hearing birds sing at night is an ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. *Attached video: Millions watch live ...