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Archive for June 2011

Boost your Immune System: Breed with an Extinct Human Species

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Last week at the Royal Society in London, research was presented suggesting that Neandertals not only interbred with H. sapiens sapiens, but that their genes were helpful to modern people moving out of Africa.

This pioneering study was led by Peter Parham of Stanford University, and was only possible after the draft genome of H. neanderthalensis was published. The researchers looked at human leukocyte antigens (HLAs), genes important to the functioning of the immune system.

Different regions of the world are known to have unique HLAs, because different variations create specific disease resistances. It would have been advantageous for the earliest modern humans to breed with a species (or subspecies) already adapted to living in a different climate. Moderns could have picked up helpful genes that were already in existence from Neandertal populations, which would have possibly allowed their populations to expand more rapidly. Why wait for random mutation when you can interbreed with a people already successfully adapted to an area?

Neandertal Child Reconstruction

While only approximately 6% of the modern European genome was contributed from earlier hominins, around half of specific HLAs can be attributed to these earlier forms of people. As a form of further substantiation, Europeans have HLA variations present within the Neandertal genome not found in Africans. Interestingly, Asian populations today also have a variation not present anywhere else, which could indicate Denisovan (mystery Siberian hominin) admixture.

As if the draft sequence showing interbreeding was not enough last year– this study has raised the bar on the type of information we can hope to glean from looking at ancient DNA. There was a time when archaeology and anatomy were the only windows we had into our ancestral relatives. It will be exciting to see what is uncovered next.

By Matthew Magnani

Written by mmagnan1

June 17, 2011 at 3:48 pm

Happy Birthday Indy!

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Cover of "Indiana Jones and the Raiders o...

Cover via Amazon

June 12th is the 30th anniversary of Raiders of the Lost Ark and Indiana Jones remains the world’s most famous archaeologist.  How many real-life archaeologists are household names?  In honor of Indy‘s birthday, I’m posting a revised excerpt of an essay I wrote for the Society for American Archaeology’s Archaeology for the Public website several years ago (see  this link for the complete version):

In 1981 Raiders of the Lost Ark set the tone for virtually every action blockbuster that has been produced since, and it is easily the most well-known fictional film with archaeological content.  Its sequels Indiana Jones and the Temple of Doom (1984), Indiana Jones and the Last Crusade (1989), and Indiana Jones and the Kingdom of the Crystal Skull (2008) were also very commercially successful.  Despite the differences I’ve outlined (and there are many more), a large segment of the general public associates archaeology with the now legendary character of Indiana Jones.  When people find out you’re an archaeologist, their first question is often “Is it really like Indiana Jones?”  As a result, Indy gets a lot of criticism from professionals who get tired of explaining that archaeology is rewarding, is often full of adventure and excitement, but it’s not very much like Indiana Jones.  But archaeologists and educators can use the popularity of the Indiana Jones movies to their advantage.  These films, by depicting what archaeology isn’t, provide an entertaining opportunity for teachers and students to make comparisons and discuss what archaeology is.

Many of us, especially children and adolescents, are first exposed to the field of archaeology by viewing fictional adventurers like Indiana Jones.  Personally, I first heard the word archaeology when I saw Raiders of the Lost Ark as a kid.  While sitting in that darkened theater, I was so impressed by Indy’s intelligence and determination that I resolved to go to the school library and read more about this mysterious thing called archaeology.  Despite my initial disappointment that archaeologists didn’t carry bullwhips, I quickly became fascinated with real archaeology.  That was 30 years ago and I’m still fascinated.  The Indy movies don’t accurately reflect archaeology, but their popularity has the potential to spark public interest in finding out more about archaeology – the facts behind the fiction.  The archaeologists of tomorrow might very well be sitting at home or in class watching Raiders of the Lost Ark today.  In that sense, Indiana Jones is a hero to movie-goers, educators, and archaeologists alike.

So I argued then, and still believe, that Indiana Jones can help popularize real archaeology.  Evidently, the Archaeological Institute of America shares this belief since Harrison Ford is a member of their governing board.  What do you think?  Is Indiana Jones good for archaeology?  Please share your thoughts and memories of Raiders of the Lost Ark in the comments.

- Jay Fancher

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