What features of Neanderthals indicate their higher organization in comparison with Pithecanthropus?

In comparison with Pithecanthropus, Neanderthals have a number of important transformations:

1) a change in body position (if in Pithecanthropus it was bent, then the Neanderthals were already moving, slightly bent over);

2) the brain increases in volume up to 1400 cm. Sq. (Pithecanthropus volume: 700-1200 cm. sq.)

3) skull: sloping forehead and back of the head, chin protrusion has a weak development, the appearance of a large supraorbital ridge (in Pithecanthropus: the bones of the skull are more massive, good expression of the brow ridge, sloping forehead);

4) the social way of life is replaced by collective activity, caring for loved ones and taking care of them become characteristic.

5) good development of advanced speech (pithecanthropus: primitive speech).