Primates show new capacity for better logical reasoning than human toddlersNew research has shown for the first time that animals are capable of the deductive aspects of a form of reasoning by exclusion through a decision-making task completed by primates, indicating that verbal language is not a prerequisite for this type of logic.
What humans, primates both know when it comes to numbersAdults and children in the US, adults from a 'low numeracy' tribe in Bolivia and rhesus monkeys ALL possessed the ability to distinguish between large and small quantities of objects, regardless of the surface area they occupy. This ability is likely a shared evolutionary trait, according to a study. The nonverbal visual tests could be used in assessing early math education in young children.
Primates’ Understanding of Quantities Offers Clues to the Origins of Human CountingMonkey see, monkey count—almost. New research from the University of Rochester shows that while monkeys don’t have words or symbols for numbers like we do, they do understand the basic logic behind counting—and that can show us how humans first learned to count.