ANTHR 101 Lecture Notes - Lecture 18: Premolar, Diastema, Technical Intelligence
Document Summary
The relationship between body and brain size is the index of encephalization. Modern human brain size is well beyond that expected for a primate of similar body weight- a central component of recent human evolution. Learning, memory, and problem solving associated with intelligence. Technical intelligence- ability to use tools to exctract food and other resources from their natural environment. The originals of bipedalism are roughly 5-6ma. Do not see first stone tools till 2. 5ma-> big gap. It does not seem to have a big effect early on. Hominin intelligence and brain size increase is the result of benefits of navigating and foraging on a complex tropical forest ecosystem. Problem solving -> remembering which tree was good & produced a lot of goods. Lots of tiny animals survive well while navigating complex. Hominin intelligence and brain size increased as a result of benefits of being politically or socially clever when living with others.
