A self-driving car, a chiming sound, and one very alert chiweenie: How classical conditioning shows up in surprising ways.

Valley fever, or coccidioidomycosis, is caused by a fungus that thrives in moist soils and becomes airborne during drought. Its spores are easily inhaled, leading to infection. Climate change is ...

Movie dogs save the day in all kinds of ways — with bite, bark, or just a furry body for our heroes to cuddle up with. They can turn a mediocre film into a classic, steal your heart with little ...