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.
Habilis and H. erectus. Homo habilis. This is an interesting and important hominid species, which is believed to have formed the bridge between erectus and Australopithecines. However, they also lived with both these species together in different times.It has been a common agreement that these hominids were the first to evolve of the Genus: Homo.his is an interesting and important hominid species, which is believed to have formed the bridge between erectus and Australopithecines. However, they also lived with both these species together in different times. It has been a common agreement that these hominids were the first to evolve of the Genus: Homo.