World Topics

Dec 23, 2016

Brain wave: using sound to diagnose concussion

From blows to the head on the sports field, to car crashes and playground falls, concussion is a common brain injury notoriously difficult to diagnose — until now, researchers said Thursday. A U.S.-based team unveiled a fast, portable and reliable test measuring differences in ...

Oldest gorilla in America turns 60

Dec 22, 2016

Oldest gorilla in America turns 60

She is a mother of three, grandmother of 16, great-grandmother of 12 and great-great-grandmother of three. She recently had surgery to remove a malignant tumor, but doctors say she’s doing well. She’s Colo, the nation’s oldest living gorilla, and she’s turning 60 on Thursday ...

Man-made antimatter produces first light

Dec 21, 2016

Man-made antimatter produces first light

Scientists have used a laser to make atoms of antimatter shine, a key step toward answering one of the great riddles of the universe. Theory predicts that the big bang produced equal amounts of matter and antimatter. Since they would have canceled each other ...

Sex exists to avoid disease, study demonstrates

Dec 21, 2016

Sex exists to avoid disease, study demonstrates

From an evolutionary perspective, sexual reproduction could be seen as a nonstarter. Compared to cloning, which also exists in nature, it is a major waste of time and energy. Think of the ungainly, preening peacock — an easy snack for tigers and wild dogs ...