Did caring for children give us bigger brains? Helpless babies need smarter parents to survive and this may have boosted human intelligence

Looking after helpless babies may have been the key in humans developing bigger brains and ultimately helped us become smarter. A new study suggests the demands of intensive child-rearing set in motion a runaway feedback loop, acting as a driver for human intelligence. Researchers claim that intelligent parents give rise to larger brained babies, which need to be born earlier in order to pass safely through the birth canal and survive. Researchers suggest the demands of intensive child-rearing set in motion a runaway feedback loop, acting as a driver for human intelligence. Premature babies are more dependent at birth, so need more intelligent parents to take care of them and so on, all of which has led to human level intelligence.