It is true that Neanderthals had larger brains on average than modern humans. However, brain size alone does not necessarily equate to intelligence. Modern humans have developed different cognitive abilities that have enabled them to survive and thrive.

The average Neanderthal brain size is estimated to be around 1,600 cubic centimeters, which is larger than the average modern human brain size of around 1,350 cubic centimeters. This suggests that Neanderthals had relatively larger brains compared to modern humans.

Neanderthals had slightly larger brains than modern humans on average, but there were differences in the organization and structure of their brains. Neanderthals had a larger visual processing area, while modern humans have larger areas related to higher cognitive functions. Neanderthals likely had similar cognitive abilities to modern humans, but may have had differences in social behaviors and communication.

osteology

Yes. The Neanderthal body was adapted to cold weather. It had a larger mass than modern humans, which helped retain heat.