A visitor to Rock Creek Park in Washington, D.C., in the early 1990s might have chanced upon a strange sight: a troop of monkeys with brilliant orange fur and long, twiggy…

Much like his ninja namesake, Naruto the white-lipped peccary was a bit of a loner. Naruto was named after the main character from a popular manga and anime. He was…

Carbon dioxide is a climate-warming greenhouse gas. Trees are renowned for capturing it as they grow. But through microbes in their bark, trees soak up other major climate gases, too,…

Dozens of millennia-old Arabian cheetahs lie frozen in time. Researchers uncovered the ancient skeletons and mummies in Middle Eastern caves. No wild cheetah has roamed this region for decades. But…

In the Pokémon world, Pikachu is a chubby yellow mouse. It may look cute and harmless — but don’t be fooled. When its red cheeks start sparking and it whips…

Symptom (noun, “SIMP-tum”) A symptom is a clue that something is wrong. In medicine and psychology, a symptom is an effect of an illness or condition that a person feels.…

Toddlers are the daredevils of the chimp world. Those 2 to 5 years old are more likely than older chimps to free-fall from treetops or leap wildly from branch to…

If you want a glimpse of the future of Antarctica, look at King George Island. It sits at the northern tip of the Antarctic Peninsula. This finger of land, which…

Graphene is a wonder. This single layer of carbon atoms is stronger than steel and lighter than aluminum. It conducts electricity better than many other materials. And recent studies now…