For the first time, scientists sequenced the genomes of 20 individual lions, including extinct cave lions, revealing insights into their family tree.

More Best Things To Do in Joshua Tree National Park. 1 of 12. 2 of 12. Free, Hiking, Recreation Type. Half Day to Full Day Time to Spend #1 Rock Climbing.

More Best Things To Do in Joshua Tree National Park. 1 of 12. 2 of 12. Free, Hiking, Recreation Type. Half Day to Full Day Time to Spend #1 Rock Climbing.

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The December 18 explosion is the region’s fourth in three years—and has fired out 10 times more lava per second than any of the past three at their peaks. Here's what happens next.