The "untouched" rainforests of Southeast Asia may have been more manhandled than previously thought, with humans burning forests to make way for food-bearing plants soon after the last ice age ended.
Examinations of airborne scans of three New England towns revealed networks of old stone walls, building foundations, old roads, dams and other features, many of which long were forgotten.
Researchers have discovered the enzyme responsible for tomatoes' chemical defense response.
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