Full Idea
Rats can determine the number of times they have pressed a lever up to at least twenty-four presses,…and can consistently turn down the fifth tunnel on the left in a maze.
Gist of Idea
Rat behaviour reveals a considerable ability to count
Source
Alvin I. Goldman (Phil Applications of Cognitive Science [1993], p.58)
Book Reference
Goldman,Alvin I.: 'Philosophical Applications of Cognitive Science' [Westview 1993], p.58
A Reaction
This seems to encourage an empirical view of maths (pattern recognition?) rather than a Platonic one. Or numbers are innate in rat brains?