Energy-saving technique used by world's largest bats revealed

Researchers from Western Sydney University have led a pioneering new study, finding that flying-foxes, the largest of the bats, use torpor in the wild—a vital energy-saving state previously observed only among much smaller ...

California fires spread in July 4 weekend heat wave

California firefighters battled multiple blazes in record heat Friday, with a new fire breaking out near the famous Yosemite National Park even as a larger inferno further north came under control.

Thousands told to flee raging California wildfire

Thousands of people have been ordered to evacuate as a wildfire rages out of control in northern California, with a swathe of the United States in the grip of a "record-breaking and dangerous" heat wave that was complicating ...

Mass tourism brings dollars but with all the baggage

Last August, the picturesque Himalayan kingdom of Bhutan halved to US$100 per night a charge levied on international tourists. The fee recognized the "important role of the tourism sector in generating employment, earning ...

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