US experts probe beaching that killed 17 whales

US scientists are to investigate what led 22 whales to beach themselves in Florida—killing 17 of them—one of three such incidents in North America over the weekend.

Hopes of saving rare tortoise die with 'Lonesome George'

The death of Lonesome George came as a shock to the caretakers who had come to know the 100-year-old giant tortoise, the last survivor of a subspecies decimated by pirates more than a century ago.

Robot reconnoiters uncharted terrain

Mobile robots have many uses. They serve as cleaners, carry out inspections and search for survivors of disasters. But often, there is no map to guide them through unknown territory. Researchers have now developed a mobile ...

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