Crows may be bird-brains, but the feathered creatures can understand the highly abstract concept of zero, new research suggests. The concept of zero, as used in a number system, fully developed in ...

Around 2,500 years ago, Babylonian traders in Mesopotamia impressed two slanted wedges into clay tablets. The shapes represented a placeholder digit, squeezed between others, to distinguish numbers ...

Ittay Weiss does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

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.

University of Bath provides funding as a member of The Conversation UK. It should come as no surprise that the first recorded use of the number zero, recently discovered to be made as early as the 3rd ...