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PlantsLiverwort plants contain a painkiller similar to the one in marijuana
Cannabinoids found in liverwort plants could spell relief for those suffering from chronic pain.
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ArchaeologyAncient Clovis people may have taken tool cues from earlier Americans
Ancient Americans’ spearpoints may have heralded later Clovis weapons.
By Bruce Bower -
TechA new palm-sized drone is mini, but mighty
Unlike other small drones, this flying robot can tote objects up to 40 times its own weight.
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LifeWhy some people may be more susceptible to deadly C. difficile infections
Proline, a type of amino acid, increases when gut microbe mixes are disturbed, giving this pathogen a ready food source.