CultureWhen did mammals evolve? Fossils of an extinct squirrel-like animal reveal the answer The first full fossilized remains of the extinct mammal called haramiyids suggest that the mammals lived during the time of the dinosaurs, proving that mammals evolved much earlier than previous thought.by Lauren Keating
ScienceDreadnoughtus unearthed: Largest animal puts T. rex to shame, most complete giant dino fossil ever foundby Rebecca Kaplan
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