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Shark: Beneath the SurfaceScientists use new techniques to study the hidden life of sharks and discover these complex creatures are smart, social, and superb navigators.![BBC Earth]()

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Now PlayingShark: Beneath the SurfaceScientists use new techniques to study the hidden life of sharks and discover these complex creatures are smart, social, and superb navigators.0
Super Small AnimalsSizing up a primate no bigger than a mouse, a chameleon that fits on a fingertip and other minuscule creatures with biologist Patrick Aryee; learning why being tiny can be an advantage; some ingenious adaptations to life's big challenges.