Spinosaurid dinosaurs teeth

The speed at which spinosaurid dinosaur teeth were replaced accounts for...

Molten lava from a Hawaiian volcano. Image: Willyam/Adobe

Volcanic super eruptions are millions of years in the making —...

Earth

Ancient source of oxygen for life hidden deep in the Earth’s...

Thin section of NASA sample, LAP 02436, Lunar Mare Basalt containing indigenous noble gases. Image type: optical microscopy, cross-​polarized light. (Image: ETH Zurich / Patrizia Will)

One more clue to the Moon’s origin

Plesiosaurus and spinosaurus may have both inhabited freshwater rivers

Plesiosaur fossils found in the Sahara suggest they weren’t just marine...

he Fagradalsfjall eruption site viewed from above. The photo shows lava emanating from multiple vents. Tourists for scale. Photograph: Alina V. Shevchenko and Edgar U. Zorn, GFZ Germany

Iceland volcano eruption opens a rare window into the Earth beneath...

Brine pools are one of the most extreme environments on Earth, yet despite their high salinity, exotic chemistry, and complete lack of oxygen, these pools are teeming with life.

Rare deep-sea brine pools discovered in Red Sea

Fig. 1: The giant ash cloud that erupted from Hunga Tonga–Hunga Ha'apai, taken by the Himawari-8 satellite Credit: EyePress News/Shutterstock

Shockwave caused by Tonga underwater eruption may help scientists predict future...

Paleontologists originally thought that T. rex had three claws, but later determined that it only had two. R. Mickens/©AMNH

Study refutes claim that T. rex was three separate species

Articulated left tibia and pes

A new giant dinosaur gives insight into why many prehistoric meat-eaters...

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