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David sez, "Waved Albatrosses mate for life, and they breed on just one island in the Galapagos. But they don't spend all their time there, so they do this elaborate mating dance so they can learn to recognize each other when they return."
This is some mating dance -- like the elaborate gang-handshakes we used to think up when we were stoned, but a thousand times sillier, with funny noises, beak-fencing, and a lot of general bobbing up and down.
Link
(Thanks, David!)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.