Zebra finches fire up brain regions and vibrate their vocal cords in ways that mimic singing, even while asleep. Flickr/Michael Lawton Zebra finches are so good at singing, they could do it in their ...

Male zebra finches learn their song by imitating conspecifics. To stand out in the crowd, each male develops its own unique song. Because of this individual-specific song, it was long assumed that ...