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A fossilized Edmontosaurus skull with a Tyrannosaurus tooth still embedded in its face has given scientists rare evidence of a dramatic predator-prey encounter. The discovery suggests the giant carnivore delivered an incredibly powerful face-to-face bite, offering new clues about how Tyrannosaurus h...

Przewalski's horses were once listed as extinct in the wild, with only a few remaining in captivity.

Sediment eroded from ice-capped mountains splays out across a broad river valley on Russia’s Severny Island.

The third consecutive night of US strikes on Iran came as Trump announced a 20% charge as part of a new blockade on the strait.

Exercise doesn't just make the heart stronger. It also rewires the nerves that regulate it, a discovery that could pave the way for more personalized treatments for common heart conditions such as arrhythmias and angina.

Summary pending review.

Summary pending review.

Summary pending review.

The South Carolina governor chose the senator's little sister to serve out the rest of his term after Graham's death on Saturday.