Leaf Cutter ants have razor sharp blades that don't fracture
Films are marked with genetic codes to deter thieves
Warming temperatures and retreating glacial ice sheets expose land where ancient forests once stood
Massive flooding, widespread forest fires, glacier melt, coral death
James Balog explores climate change and vanishing animals, landscapes
Ice Age reptiles offer clues to survival in a warmer world
Endangered wild plants are key to saving major food crops
Entrepreneur Frederick Day gives 70,000 rugged bikes to the world's poorest people
Recovery plan adopted by world leaders at Russian summit
Evidence of carbon-eating bugs at 1400 meters surprises scientists
Disney cartoon animators helped combat Nazi propaganda on the brink of World War II
Nurturing mollusks on backyard piers aids ecosystem recovery
Residents fear contamination from toxins linked to cancer
The way infected monarchs medicate offspring could impact development of drugs for humans
Ocean life is richer and more altered than expected
Some lost species - once believed extinct - are rediscovered
Independent expert uses new video techniques to measure Gulf of Mexico spill
Material absorbs CO2 and other greenhouse gases in the atmosphere
Opens path for exploration and study of universe
High-achieving students unrecognized or underserved in nation's classrooms
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