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.
The average daily temperature during this month in Cairo is 18Â°C (64Â°F). This can reach highs of 23Â°C (73Â°F) or drop to lows of 12Â°C (54Â°F). Cairo sees an average of 4 mm over 2 days of rain during this month. Cairo experiences, on average, 11 hours of sunshine per day at this time of the year.