New study re-writes human history
For many years scientists have believed that humans first arrived in the Americas by crossing the Bering Strait around 10 to 15 thousand years ago. A new scientific paper published last month in the journal "Nature," however, suggests that they may have been here much earlier, according to sdnews.com.
In 1992, fossils were first found at a San Diego construction site. At the time of the discovery, archaeologists did not have the technology to identify the type of creature. Then, in 2011, the fossils were finally identified as mastodon bones which seemed to have been shaped into tools.
Scientists now believe that the complexity of the tools suggests that a human ancestor likely created them. Some of the stones at the site were also moved and put in odd places, and the mastodon bones were chipped in a way which lead scientist to believe that an earlier ancestor of humans made them that way.
According to independent.com, the “remains were 130,000 years old, plus or minus about 9,400 years,” which is over 100,000 years before the first humans were thought to have arrived in North America.
"This raises intriguing questions about how these early humans arrived here and who they were," the leader of the research team told sdnews.com.