Decades of cognitive research reveal that parrots can understand what numbers represent. Here’s how these birds use them to ...

If you need to move text, an image or another object from one part of a document to another, or from one app to another, you need to use copy (or cut) and paste. On a Mac or MacBook, the keyboard ...

Treasures unearthed by hundreds of archaeologists during the ongoing construction of the controversial HS2 train line have been shown exclusively to the BBC. The 450,000 objects, which are being held ...

Alicia Silverstone has a funny story about her time guest-starring on “The Wonder Years” more than 30 years ago. During a new interview with Entertainment Weekly published Friday, Aug. 15, the ...

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, ...

Alpha Centauri, the nearest star system to the sun, is probably shedding comets and asteroids into our solar system — and even producing a few meteors in our sky. Located just 4.3 light-years from ...

You often have to make quick judgments about the number of objects you encounter in the world. You might see a group of people walking toward you. It is useful to know whether there are roughly five, ...

Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are by ...