New York City Mayor Bill De Blasio asked New Yorkers to wear a face covering when they go outside and will be near other people...

Three scientists won the Nobel Prize in physiology or medicine for discovering how cells respond to differing oxygen levels, paving the way for promising strategies to fight anemia, cancer and other d...

Correction: Swamp Rodent Invasion story...

A new study finds there are nearly 3 billion fewer wild birds flying in North American skies than in 1970...

Scientists studying a widely used pesticide say even small doses of the chemical can have crippling health effects on migrating birds, and it might be contributing to declines in their overall populat...

A new US lawsuit seeks to establish a "whale protection zone" for endangered orcas in the Pacific Northwest...

A newly released study says if Asian carp reach Lake Michigan, they probably would find enough food to spread farther...

Scientists are expected to explore fundamental questions about the universe when they use a giant new telescope planned for the summit of Hawaii's tallest mountain...

New research suggests that a healthy lifestyle can cut the risk of developing Alzheimer's or other forms of dementia even if you have genes that raise your risk for these diseases...

AP-NORC poll: Most Americans prefer focusing on potential asteroid impacts...