All animals that forage need a talent for numerosity perception.
From the newscientist.com
However, Boas never made the numerosity claim.
From the newscientist.com
That would mess up the opportunity to study statistically the relationships of numerosity perception with formal education that they were looking at.
From the newscientist.com
Or rather, it opened itself, as the ability seems to have emerged naturally from basic learning processes and not from any programmed understanding of numerosity.
From the techcrunch.com
More examples
Numerousness: a large number
The condition of being numerous; The extent to which something is numerous
A finding by the court that the number of class members is involved such that it is impracticable to named them all in the complaint and have them all actively participate in the litigation.