Monkeys have a semantic perception of numbers that is like humans’ and which is independent of language, Duke University cognitive neuroscientists have discovered. They said their findings demonstrate that the neural mechanism underlying numerical perception is evolutionarily primitive.
This is really interesting. it suggests that the ability to group and compare things, the concept of a set, and other basic math skills are native to other species, not just humans. If the basic processes of numeric cognition are the same, George Lakoff and Rafael Nunez’s Where Mathematics Comes From: How the Embodied Mind Brings Mathematics Into Being suggests that, if this is the case, the mind of other animals probably work metaphorically, as ours do.