Humans' two-legged gait evolved to save energy, new research says
Bundle up your power cords—wireless energy transfer is here
Great sharks, manakins and dino digs
Physicist Robert Lang has taken the ancient art of origami to new dimensions
Meet Cristián Samper, Acting Secretary
Can a new plan to relocate the Tasmanian devil save the species?
New technologies are aiding the search for one Civil War submarine, and the conservation of another
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