Geometric signs on cave walls and ancient artifacts may be some of humanity’s earliest graphic communications.
Look toward the southeastern sky for prime views of the true lord of the rings.
Experts doubt that the gorilla was abnormally aggressive—but still think the Cincinnati Zoo made the right decision to shoot him.
New measurements suggest that our galaxy is on the slimmer side, at a mere 700 billion times the mass of the sun.
A tradition of metalworking has left a historic village contaminated with high doses of lead. Now the threat continues from battery recyclers spewing toxic smoke.
The gorilla’s death at the Cincinnati Zoo was one of several in a week in zoos worldwide.
Animal News From National Geographic