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  1. The animal kingdom never ceases to amaze

    Editor in chief Nancy Shute revels in the wonder of animals, from psychedelic toads to extinct pterosaurs.

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  2. Oceans

    Satellite data reveal nearly 20,000 previously unknown deep-sea mountains

    By looking for tiny bumps in sea level caused by the gravity of subsurface mountains, researchers have roughly doubled the number of known seamounts.

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  3. Readers react to Neandertal diets and impressionist art

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  4. Physics

    Black holes resolve paradoxes by destroying quantum states

    A classic quantum experiment done near a black hole would create a paradox, physicists report. But not if the black hole collapses quantum states.