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  1. Health & Medicine

    Cancer cells have a ticket to ride

    Cancer cells may spread using the same system that immune system cells use to move through the body.

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  2. Health & Medicine

    Gene links eyelids and early menopause

    A gene that orchestrates ovary and eyelid development may be the key to early-onset menopause.

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  3. Urchins of the Seas

    If you haven’t really been paying attention for the last 450 million years or so of Earth’s history, London’s Natural History Museum offers a tidy way to catch up with a diverse, venerable group of marine invertebrates known as echinoids. Spectacular color images highlight important distinguishing characteristics of each type of sea urchin.