Most people learn to count and do basic arithmetic at a young age and don’t give these skills a second thought. But numerosity or numeracy, the ability to think about and use numbers, is more than a ...

Humans, including infants, and many other species have a capacity for rapid, nonverbal estimation of numerosity. However, the mechanisms for number perception are still not clear; some maintain that ...

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.

While some experiments try to test animals' perception of quantities in natural settings, others use training paradigms that offer experimenters more control over the conditions. All face the obstacle ...

Seyfarth Synopsis: For the second time in four years, the Third Circuit has reversed a trial court’s certification of a nationwide Title III class on numerosity grounds, applying a demanding standard ...

The results of a new canine numerosity study suggests that a common neural mechanism has been deeply conserved across mammalian evolution. Dogs spontaneously process basic numerical quantities, using ...

The Third Circuit’s new opinion on class certification issues in Mielo v. Steak ‘N Shake Operations, Inc., No. 17-2678 (3d Cir. July 26, 2018) provides helpful guidance for district courts and class ...

Traditionally, humans are said to have five senses: vision, hearing, taste, smell, and touch. But what if there is a sixth sense? Although extrasensory perception (ESP) is often proffered as the sixth ...

Most people learn to count and do basic arithmetic at a young age and don’t give these skills a second thought. But numerosity or numeracy, the ability to think about and use numbers, is more than a ...

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 ...