Diving the Antarctic

Adelie Penguins
Wu's colleague Peter Brueggeman marveled at the behavior of these birds: "They watch the water, and when a large group of penguins comes swimming into their immediate area, they start getting very vocal. They start jostling, jockeying for position. Squabbles break out, beaks peck back and forth, there's some flipper bashing, lots more loud discussion, then more jostling and pecking, until finally the braver ones will jump in, followed by an immediate chain reaction of everyone rushing to jump in at the same time, no waiting, every penguin for himself."

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