Nashville, TN, USA. A standardized object recognition test shows women are better than men at recognizing living things while men best women at recognizing vehicles.

That is the unanticipated result of an analysis psychologists performed on data from a series of visual recognition tasks collected in the process of developing a new standard test for expertise in object recognition.

Madison, WI, USA. An invasion of mussel pests have threatened the water supply in the Great Lakes for more than a decade. Now they have crossed the Rocky Mountains.

Bob Wakeman knows the invaders well. He’s seen what they have done to ecosystems throughout the Great Lakes, choking out billions of dollars worth of aquatic life.