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Bird brains may be tiny, but they pack in as many—or more—neurons as much larger animals.

Venture back to the birth of space and time as NOVA probes the mystery of the Big Bang.

Discover the origins of the horse and how it changed our world forever.

New episodes of Finding Your Roots are back Tuesday, October 13, at 8/7c!

Travel to the Northern Hemisphere, where the spies learn how animals move, feed and fight.

Preview: Denver Botanic Gardens Chatfield Farms, Hour 2

At the GOP debate in Miami, five Republicans sparred over top issues include the Israel-Hamas war, Ukraine, China, abortion and Social Security. Here's what you need to know.

NPR's A Martinez speaks with former U.S. Surgeon General Jerome Adams about the confirmation hearing for the nation's next likely top doctor.

Suicide killed more U.S. troops last year than combat in Afghanistan, a trend that's likely to continue this year. The causes and remedies are complicated, but Fort Bliss in Texas has bucked the trend. Suicides have declined there, after implementation of an interactive suicide prevention program.

The European Union is seeking China's assurances that it won't assist Russia in circumventing economic sanctions for invading Ukraine and cooperation on ending the war at today's virtual meeting.