Pterosaur

Pterosaur : What Is a Pterosaur?

sluglike mollusk Wiwaxia

Rare fossils provide more detailed picture of biodiversity during Middle Ordovician

Reconstruction of the studied pterosaur

Feathers came first, then birds

Grand Canyon

Glacial sediments greased the gears of plate tectonics

During the Early Cretaceous period (145-100 million years ago), nonavian dinosaurs likely migrated between Africa and Europe. Image adapted from research figure originally published in Systematic Biology

In hot pursuit of dinosaurs: Tracking extinct species on ancient Earth...

Google Earth

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tourmaline group

New mineral classification system captures Earth’s complex past

two largest earthquakes

Earthquakes that talk to each other

Groundwater

Mapping groundwater’s influence on the world’s oceans

San Salvador Volcano

A 49 kilometers high volcanic ash column rose up over the...

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