Call them oil droplets with a brain or even "chemo-rats." Scientists in Illinois have developed a way to make simple oil droplets "smart" enough to navigate through a complex maze almost like a ...

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, ...

Why do leopards have spots and zebras have stripes? Many biologists have tried to answer these questions and have provided interesting hypotheses, including camouflage, thermoregulation, and insect ...