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Researchers quantify toxic ocean conditions during major extinction 93.9 million years...

Tell-Tale Toes Point to Oldest-Known Fossil Bird Tracks from Australia

Proterozoic Eon

Bees Underwent Massive Extinctions When Dinosaurs Did

Reading Ancient Climate from Plankton Shells

Study shows unprecedented warmth in Arctic

Archean Eon

High School Student Discovers Skeleton of Baby Dinosaur

Quake-triggered landslides pose significant hazard for Seattle, new study details potential...

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