The "forever chemical" PFOS accumulates in honeybee colonies and transfers to their honey. New research shows chronic exposure leads to lower body weight in juvenile bees and disrupts key proteins, potentially threatening global pollination, food security, and human health.

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"Longer-term I think that tendon-driven hands using more sophisticated mechanisms will result in more affordable and capable hands," he says.

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Musk promised it will have "the manual dexterity of a human, meaning a very complex hand".

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