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World is on a hot streak

The globe is on a hot streak, setting a heat record in June. That’s after the world broke a record in May. Last month’s average global temperature was 61.2 degrees, which is 1.3 degrees higher than the 20th century average.

Buffalo at the Grand Canyon? Site among 20 under study

Federal wildlife officials on Monday listed 20 parcels of public lands in 10 states that could be suitable for bison from Yellowstone National Park. The sites under study include Arizona’s Grand Canyon National Park, an Iowa wildlife refuge and a North Dakota historic site.

Bee expert has buzz on rebounding species

Once abundant throughout the Western United States, the bumblebee with the distinctive white rump began to disappear in the 1990s. By the time this man made his discovery, some experts feared it was gone forever from the Puget lowlands.

Great white shark numbers are surging, says study

A report that scientists are calling one of the most comprehensive studies of great white sharks finds their numbers are surging in the ocean off the Eastern U.S. and Canada after decades of decline — bad news if you’re a seal, but something experts say shouldn’t instill fear in beachgoers this summer.

NASA may grab asteroid that passed by in 2011

At 20 feet long, it is “the size of a delivery truck; we might actually be able to put this asteroid in a garage,” said Northern Arizona University astronomer Michael Mommert, who studied the rock, which goes by the inelegant name of 2011 MD.