In the dead of night, bats and insects are locked in an acoustic war. Bats send out ultrasonic clicks and listen for the echoes to home in on insect prey.…

Dimension (noun, “dih-MEN-shun”) In math, a dimension describes how many numbers you need to specify a particular location. Imagine a number line. You only need one number to pinpoint a…

At times, cats seem to behave more like liquids than solids. They slip through crevices, squeeze under doors and fill containers of various shapes. A new study testing cats’ liquid-like…