How do you explain the hummingbird's bizarre tongue?

Last year, high-speed footage of hummingbirds drinking overthrew the centuries-old notion that the birds feed using capillary action. Instead, it turns out the birds trap the nectar by curling their tongue around it. Now, new research in the Proceedings of the Royal Society B has shown that there might have been some… » 10/18/12 10:31am 10/18/12 10:31am

Hummingbirds dive to sing with their tails

Many birds sing to woo females, but some hummingbirds go to great lengths to do so. They climb to between 5 and 40 metres before plummeting past perched females in death-defying dives. They pull up at the last minute, spread their tail feathers and produce a loud chirpy song. The song comes not from the birds' mouths,… » 9/11/11 2:30pm 9/11/11 2:30pm