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Can Dogs Talk? Preview
Can dogs understand what we say—and talk back? Witness amazing moments from a major experiment, as thousands of dogs use speech buttons. Pet owners are convinced, but are our furry friends really communicating their thoughts and desires with us?
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53:46
NASA launches its most ambitious search yet for traces of ancient life on Mars.
53:32
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:30
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:31
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:21
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?
1:52:46
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
53:30
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.
53:15
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
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53:23
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.