Kernicterus is caused by a high level of bilirubin in a baby's blood. If left untreated, the bilirubin can then spread into the brain, where it causes long-term damage. A low-level buildup of bilirubin is normal.
View full size image. Compared with modern Homo sapiens, which have only been around for the last 200,000 years, Homo erectus, or upright man, had a long reign. The ancient ancestor of modern humans lived from 2 million years ago till about 100,000 years ago, possibly even 50,000 years ago.omo erectus, an ancestor to modern humans, arose at least 1.8 million years ago. Around that time in the fossil record, archaeologists see big shifts in brain size and body size in ancient hominins.
A major conference in London this week will reveal the results of five years' research on why Homo sapiens emerged triumphant in the survival battle of the humans. A major conference in London this week will reveal the results of five years' research on why Homo sapiens emerged triumphant in the survival battle of the humans. New research has revealed that Neanderthals died out within a few thousand years of the appearance of Homo sapiens. Photograph: BBC T he puzzle is one of the greatest surrounding our species. On a planet that bristled with different types of human being, including Neanderthals and the Hobbit-like folk of Flores, only one is left today: Homo sapiens.