Is it possible to count objects you can't see? If you've ever received a boxed gift, or a mysterious package from Amazon, you might have tried to lightly shake the box to try to guess its contents.

Compulsively counting objects or actions is a common symptom of OCD. Exposure therapy can help you develop coping mechanisms when you encounter triggers. Obsessive-compulsive disorder (OCD) is a ...

Counting is hard. Yeah, it was easy enough when we were in kindergarten, but fast forward a little and suddenly you’re an adult who can’t manage to count past 10 when there’s a weight in your hand.

Crows recently demonstrated an understanding of the concept of zero. It’s only the latest evidence of animals’ talents for numerical abstraction — which may still differ from our own grasp of numbers.

Some 60,000 years ago, in what is now western France, a Neanderthal picked up a chunk of hyena femur and a stone tool and began to work. When the task was complete, the bone bore nine notches that ...

An understanding of numbers is often viewed as a distinctly human faculty—a hallmark of our intelligence that, along with language, sets us apart from all other animals. Practically every animal that ...