Name: Ice Age Footprints
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Ancient footprints in New Mexico’s White Sands National Park reveal new evidence of Ice Age humans that walked the land alongside enormous ground sloths and mammoths—thousands of years earlier than archaeologists thought people were in the Americas.

Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Ice Age Footprints

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Ancient human footprints in White Sands National Park reveal that humans first arrived in North America thousands of years earlier than previously thought.

Scattered seeds help reveal when ancient humans first left footprints in North America.

Humans May Have Lived in North America Earlier Than Thought

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6 footprints embedded in beige, crusty desert surface

Thousands of ancient footprints stretch for miles across New Mexico’s White Sands National Park, capturing moments when Ice Age humans encountered now-extinct beasts, including mammoths and enormous ground sloths. These footprints tell an intimate story about what life was like during the Ice Age and reveal surprising new evidence about when humans arrived in North America. (Premiered May 25, 2022)

Sant Director, National Museum of Natural History

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Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Evolution

US & Territories

Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas. What are the implications of these dramatic developments in the Arctic? Scientists and local communities alike are struggling to grasp the scale of the methane threat and what it means for our climate future. (Premiered February 2, 2022)

In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.

Arctic Sinkholes

The top half of Jupiter in blue and green against a night sky

A composite image of Jupiter using images captured by the James Webb Space Telescope. Image Credit: NASA, ESA, CSA, Jupiter ERS Team; image processing by Judy Schmidt.

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A transmission electron micrograph of HIV-1 virus particles (orange) replicating from the plasma membrane of an infected H9 T cell. Credit: NIAID, Flickr

Scientists have cured a handful of people of HIV by piggybacking on treatments they received for blood cancer. But does that bring a widespread cure any closer?

Ice Age Footprints

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Humans May Have Lived in North America Earlier Than Thought

Making North America

Dinosaur Apocalypse

Ice Age Footprints

Human tracks may be earliest evidence of people in North America

First Americans arrived at least 16,000 years ago, and probably by boat

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Humans May Have Lived in North America Earlier Than Thought

Making North America

Dinosaur Apocalypse

Ice Age Footprints

Human tracks may be earliest evidence of people in North America

First Americans arrived at least 16,000 years ago, and probably by boat