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National Museum of Natural History

A fossil sea turtle skull excavated from Angola’s coastal cliffs. A cast of this fossil will be featured in “Sea Monsters Unearthed,” opening November 9 at the Smithsonian's National Museum of Natural History. (Hillsman S. Jackson, Southern Methodist University)

Q&A: Sea Monsters in Our Ancient Oceans Were Strangely Familiar

Stunning fossils reveal that Angola's ancient ocean ecosystem was at once strange and familiar.

The Nation’s T. rex decapitating a Triceratops in its new pose as the centerpiece of the

An Elegy for Hatcher the Triceratops

Named in honor of the discovering paleontologist, Hatcher introduced <i>Triceratops</i> to the world, and was a pillar of the Smithsonian community for 113 years.

The Nation’s T. rex decapitating a Triceratops in its new pose as the centerpiece of the David H. Koch Hall of Fossils – Deep Time, a 31,000-square-foot dinosaur and fossil exhibit slated to open June 8, 2019. (Smithsonian Institution)

Q&A: Smithsonian Dinosaur Expert Helps T. rex Strike a New Pose

The Nation's T. rex is back at the Smithsonian's National Museum of Natural History in a striking new pose.

The National Museum of Natural History’s “Earth Temperature History Symposium” convened leading paleoclimate scientists to draw a comprehensive temperature curve of Earth’s past climates. (Lucia RM Martino, Smithsonian)

Leading Scientists Convene to Chart 500M Years of Global Climate Change

The National Museum of Natural History’s “Earth Temperature History Symposium” convened the world's leading paleoclimate scientists to synthesize the latest scientific research in a comprehensive temperature curve of Earth's past climates.

Foraminifera from Ernst Haeckel's Kunstformen der Natur. (Ernst Haeckel)

Here's How Scientists Reconstruct Earth's Past Climates

Scientists apply different methods to the geologic record with the goal of better understanding and quantifying ancient Earth's temperatures.

The 2016 Arctic sea ice summertime minimum, reached on Sept. 10, is 911,000 square miles below the 1981-2010 average minimum sea ice extent, shown here as a gold line (NASA Goddard's Scientific Visualization Studio/C. Starr).

Can Science Help Policymakers Create the Arctic Policies We Need Right Now?

If the future of the Arctic is to be governed by evidence-based policies, scientists must accelerate the exchange of knowledge and engage with policy makers.

Ginkgo biloba leaves could be the key to reconstructing past changes in carbon dioxide and climate (Rich Barclay, Smithsonian).

Can You Help Us Clear The Fossil Air?

Help Smithsonian scientists reconstruct past changes in carbon dioxide and climate by joining the Fossil Atmospheres project.

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