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Why flamingos stand on one leg

Scientists have put forward a number of ideas as to why the birds favor this unipedal stance while taking a snooze, but none had ever tested out their explanations.  Until now.Full story

Toucan is one cool bird thanks to its big beak

The toucan's colorful bill gives new meaning to the phrase cool dude. Indeed, that gigantic schnoz turns out to be a radiator the rain forest dweller uses to lose body heat. Full story

Why dinosaurs could grow so big

The secret to mega-dinosaurs' impressive sizes may be that the reptiles used more of their energy for growing and less for keeping their bodies warm compared with some creatures. Full story

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Flamingos at rest, standing on one leg. This posture may be used by the birds to conserve body heat.