PETA's president urged pet owners to use the terms "animal companion" instead of "pet" and "guardian" instead of "owner."

Just two days after Juan Gerardi produced a massive report detailing his country's wartime atrocities, three members of the military killed him in his home. That's the official story, at least.

This mysterious pulse originating from the outskirts of a galaxy half a billion light-years away is the first to ever follow a consistent cycle.

Camille Bell's son was found dead on Nov. 8, 1979, an early victim of the Atlanta Child Murders. Grief-stricken, Bell's anguish drove her to seek justice for the slain and safety for the living.

Scientists hope to use the fungi's powers to help people who are routinely exposed to radiation like cancer patients and astronauts.

The newly grown plants — named Adam, Hannah, Uriel, Boaz, Jonah, and Judith — sprouted from ancient seeds sourced from historical sites in Israel.

Sérgio Vieira de Mello was greatly admired due to his intellect and charisma, but his work as a global peacemaker was cut short by a devastating bombing.

These 30 "curse tablets" meant for the dead show what lengths Athenians would go to hex their enemies.

Just as losing the bees would have a major impact on humankind, the loss of fireflies could also spell disaster.

"Something strange is happening, because they're finishing off all the activists, the people who are doing something for society."

In the most devastating cases, feline frostbite injuries require amputation. But unlike most victims, Dymka the cat now has titanium prosthetics to help her walk around.