Issues for the Homo Erectus
Major questions on Homo erectus:
How did people get to Java (an island)?
How did people get to Australia, since Homo erectus does not appear
to have reached Australia?
Who is Homo floresiensis, which doesn’t appear to fit into our genetic
Homo moved out of Africa by 1.8 million years ago and arrived in Asia by 1.6
million years ago (and reached Java in approximately 1.4 million years ago).
How did Homo erectus reach the island of Java?
There was still a substantial amount of water to cross from mainland
Asia to Java
Although today Java is an island, during cold periods such as the Ice
Age, there were huge glaciers and mountain chains growing that
would lead to the sea level dropping around the world As a result, coastlines would change dramatically and islands would
disappear and connect to mainland Asia
During cold periods, you could walk to what are islands today
There have been dozens of Ice Ages over the million years, so there
would be ample time for the Homo erectus to walk to Java
People (modern humans) are in Australia at least by 40 thousand years ago:
To get to Australia, you