Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Ravens and other members of the corvid family (crows, jays, and magpies) are known to be intelligent. They can remember individual human faces, expertly navigate human environments (like trash cans), ...

As holiday and family gatherings draw near, so does social pressure to forgive, be happy, and be “normal,” all of which can contribute to a looming feeling of anticipatory anxiety and dread, ...