Do human infants differ significantly in their early development from infants and adults of apes? 2. What ability emerges in children at the end of their first year that is uniquely human? 3. What is an important difference between human language systems and animal language systems? 4. How long does it take children to process grammar in a focused, specialized area of the brain? 5. What other human activity may be tied to human language? 6. What is the significance of the Fox P2 gene found in humans? 7. Why are human brains so big? Describe research in social intelligence and relate it to the "Human Spark". 8. What is the Human Spark, according to this research?