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Fossil Footprints in Brazil Hint at a Cougar-Size Mammal That Walked Among Dinosaurs. It's Another Sign That Some Early Beasts Grew to Impressive Sizes After All

Don’t think of all Mesozoic mammals as meek and tiny—alongside the terrible lizards, some were giants in their own right

Fossil Footprints in Brazil Hint at a Cougar-Size Mammal That Walked Among Dinosaurs. It's Another Sign That Some Early Beasts Grew to Impressive Sizes After All

We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.

Read the original at smithsonianmag.com →

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