ancient

Researchers at Georgia State University believe they may have uncovered a surprisingly ancient way to address it.

Sometimes the clues are more cute than scary, such as the references to Heraclitus, the ancient Greek philosopher who asserted the illusory nature of reality.

Rock types, climate, and erosion patterns vary across the planet, allowing many ancient craters to vanish entirely.

The individual had consumed high amounts of animal protein, including fish and possibly shellfish that fed on ancient carbon sources, creating a known "reservoir" effect in the bones.

They created digital 3D models of each of the more than 600 skulls they examined - and compared specific features across ancient and modern dogs - and their wild relatives.