Plants
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		EcosystemsHow researchers flinging salmon inadvertently spurred tree growth
Scientists studying salmon in Alaska flung dead fish into the forest. After 20 years, the nutrients from those carcasses sped up tree growth.
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		ArchaeologyAncient South Americans tasted chocolate 1,500 years before anyone else
Artifacts with traces of cacao push back the known date for when the plant was first domesticated by 1,500 years.
By Bruce Bower - 			
			
		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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		AgriculturePlants engineered to always be on alert don’t grow well
Scientists bred a type of weed to lack proteins that help stem the production of bitter chemicals used to ward off insect attacks.
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		LifeDandelion seeds create a bizarre whirlpool in the air to fly
Researchers have deciphered the physics underlying dandelion flight.
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		Plants50 years ago, a 550-year-old seed sprouted
Old seeds can sprout new plants even after centuries of dormancy.
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		LifeLemur study suggests why some fruits smell so fruity
A new test with lemurs and birds suggests there’s more to fruit odors than simple ripening.
By Susan Milius - 			
			
		PlantsGene editing can speed up plant domestication
CRISPR/Cas9 replays domestication to make better ground cherries and tomatoes.
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		PlantsSmart plants can teach us a thing or two
‘The Revolutionary Genius of Plants’ challenges the brain-centered view of intelligence.
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		AgricultureHow plant microbes could feed the world and save endangered species
Scientists have only scratched the surface of the plant microbiome, but they already believe it might increase crop yield and save species from extinction.
By Amber Dance - 			
			
		LifeHow the poppy got its pain-relieving powers
Analyzing the poppy’s genome reveals the evolutionary history of morphine.
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		PlantsThe most ancient African baobabs are dying and no one knows why
Scientists aren’t sure what’s killing the oldest African baobabs, nine of which have lost big chunks or died in the last 13 years.
By Susan Milius