Numerosity

Numerosity is the ability to register the amount of objects being perceived. It is most commonly a strongly visually-linked faculty of sentience. Animals can identify or register amounts of things, but only up to the number 3 and do not necessarily have a concept of numbers. Numeracy then is the ability to discretely and recursively count. Implicitly performing calculations is also a subfaculty of numeracy. At its default, 3 is the least common denominator for counting systems, i.e. in some primitive cultures ≥3 is largest number there is a word for.
==Sources==
https://en.wikipedia.org/wiki/Number_sense_in_animals
https://en.wikipedia.org/wiki/Numerical_cognition
https://en.wikipedia.org/wiki/Number_sense
https://en.wikipedia.org/wiki/Numeracy
https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/
Category:Numerosity
Category:Math