Proof that Humans Interbred with Neanderthals

Over the last few hundred years, more and more has been added to the world’s fossil collection, fossils from all over the world. New theories have been created and old theories have almost been proven about the evolution of man. For example, we have proof that different species of man existed with certain types of DNA sequences and instincts, some we may not have anymore, or some that other species did not have back then. Even though it is subjected to much debate, one of the most widely accepted theories however, is that Homo sapiens interbred with the slightly more primitive species of man, the Neanderthal.

It all started when the first Neanderthal fossil to get a lot of attention was found in 1856 in Dusseldorf, Germany, due to it being the full being, rather than a few scattered bones (Walter, 102). Another skull soon after was found in Maba, China that had the same Neanderthal similarities. However, not much archaeological work has been done in the Far East. Aiello, an Archaeologist, states, “[He has] no doubt that Neanderthals could have migrated farther to the east— To Mongolia or China… There would have been nothing to stop them.” The Neanderthals took advantage of a warm period 125,000 years ago while migrating. They ended up getting as far as Siberia. During that warm period 125,000 years ago the Caspian Sea was reduced in size dramatically (Than, 1). The remains of cave drawings of Neolithic peoples and human-shaped figures have been discovered that date back to around 41,000 years ago (Hammer, 66).

Chinese and Malaysian Homo Sapiens have very close features to the Neanderthal. The skull analysis of Neanderthals and Homo sapiens are usually considered more accurate if the entire skull is examined, rather than certain ...

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...ated form” (IBT, 1). To figure things like this out and prove it, regions of genomes are compared with entire genomes. Before we are able to judge the human origins model, we need to be able to understand the coding of genes for traits of being human, etc. Paabo’s team discovered an mtDNA sequence from a finger bone they found from around 40,000 years ago, as carbon dating is one of the most commonly used methods of determining a fossil’s age. (Hammer, 70).

Also, Neanderthal mtDNA is differs severely from modern human mtDNA. For example, Microcephalin is a gene for brain size during the development of the organism. Modern human brain sizes are significantly smaller than Neanderthal’s and so are their brain cavities. TAS2R38 is the gene that controls taste. For Neanderthals, having a bitter taste “system” could have kept them from poisoning themselves by accident.