Within the genus Homo, cranial capacity again doubled from H. habilis through Homo ergaster or H. erectus to Homo heidelbergensis by 0.6 million years ago. The cranial capacity of H. heidelbergensis overlaps with the range found in modern humans.
The original height of the Pyramid was 146.5 m (488 ft), but today it is only 137 m (455 ft) high, the 9 m (33 ft) that is missing is due to the theft of the fine quality white Tura limestone covering, or casing stones, for construction in Cairo. It is still the tallest pyramid.
Khafre's son, Menkaure, built the smallest of the 3 main Pyramids on the Giza Plateau. This one was only a mere 65.5m (215ft) tall, nowadays 62m (203ft), with sides of only 105m (344ft) and an angle of 51.3 degrees.here are three main Pyramids here, which were built in the 4th Dynasty (circa 2550 B.C). The Pyramids of Ancient Egypt were built as tombs for Kings (and Queens), and it was the exclusive privilege to have a Pyramid tomb. However, this tradition only applied in the Old and Middle Kingdoms.