In 1999, while sitting at a bus stop in Cuernavaca, Mexico, a Czech physicist named Petr Šeba noticed young men handing slips of paper to the bus drivers in exchange for cash. It wasn’t organized ...

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, ...

Archaeologists working in northern Mesopotamia say they have uncovered visual patterns that look a lot like structured counting, even though no written numerals existed at the time. The claim is bold: ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. The natural world presents a palette of beautiful complexity. From the ...

Brain teasers and visual puzzles have become a favourite pastime on social media platforms like X (formerly Twitter), Instagram, and Facebook. But beyond entertainment, these little challenges help ...

The optional hint tells you how many segments can be broken. Your task is to then find which ones. Did Time Tick Slower for a Woman Who Spent 500 Days Alone in a Cave?

Leaves can be enjoyed for their shade, autumn colors, or taste, and the arrangement of leaves on a plant is a practical way to identify a species. However, the details of how plants control their leaf ...