Puppy Bowl is returning for the 21st edition with more pets than ever. It will feature 142 rescue puppies from 80 shelters, and you'll meet some kitties, too.
Bats carry viral pathogens that typically do not lead to severe disease in the bats themselves but can be lethal to humans. Adaptations in certain immune genes might contribute to this resistance.
Researchers unveil a new map and classification system that will help protect the unique plants and animals of Earth's most remote and fragile continent.