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Some animals appear to smile. But the emotion behind the smile can be tricky to decipher.

As a gargantuan plume of magma rises from the depths, tectonic forces are wrenching the island nation apart, triggering the outpouring of lava.

You’d need a pretty big drill to make it through Earth’s crust.

Learn what to say in uncomfortable situations, like ‘I don’t even know what to say to that.’

Orcas appear to select the youngest fish, work together to flip them upside down, then target the most vulnerable areas of their bellies.

First-ever dual-hominid-species footprints discovered with a combination of fame and fortuities.

Opioids have been an essential part of anesthesia, but they aren’t the only way to manage pain.

Research shows that genetic reasons are why some dieters experience the Yo-Yo Effect.

Find out what dinosaurs ate and why it was important for their evolution as researchers analyze dinosaur poop.

The holidays are upon us, and that means sweet seasonal holiday dishes.