Humanity’s Best Friend: How Dogs May Have Helped Humans Beat the Neanderthals

Author: Megan Garber Source: The Atlantic

Over 20,000 years ago, humans won the evolutionary battle against Neanderthals. They may have had some assistance in that from their best friends.

One of the most compelling -- and enduring -- mysteries in archaeology concerns the rise of early humans and the decline of Neanderthals. For about 250,000 years, Neanderthals lived and evolved, quite successfully, in the area that is now Europe. Somewhere between 45,000 and 35,000 years ago, early humans came along.

They proliferated in their new environment, their population increasing tenfold in the 10,000 years after they arrived; Neanderthals declined and finally died away.

What happened? What went so wrong for the Neanderthals -- and what went so right for us humans?

The cause, some theories go, may have been environmental, with Neanderthals' decline a byproduct of -- yikes -- climate change. It may have been social as humans developed the ability to cooperate and avail themselves of the evolutionary benefits of social cohesion. It may have been technological, with humans simply developing more advanced tools and hunting weapons that allowed them to snare food while their less-skilled counterparts starved away.

The Cambridge researchers Paul Mellars and Jennifer French have another theory, though. In a paper in the journal Science, they concluded that "numerical supremacy alone may have been a critical factor" in human dominance -- with humans simply crowding out the Neanderthals. Now, with an analysis in American Scientist, the anthropologist Pat Shipman is building on their work. After analyzing the Mellars and French paper and comparing it with the extant literature, Shipman has come to an intriguing conclusion: that humans' comparative evolutionary fitness owes itself to the domestication of dogs.

Read more on The Atlantic

Comments

Post: September 26 2012 8:49 pm By: Roy Niles

“It may have been social as humans developed the ability to cooperate and avail themselves of the evolutionary benefits of social cohesion.”
This is silly. Neanderthals lived in tribes, and cooperation is always a necessity for tribes, even if there is competition for hierarchal status, etc. In fact all animal species live and lived in cooperative groups or colonies, as well as do microbial and insect life. Family groups are so because they are cooperative. No life forms have evolved without the cooperation of others of their species; learning is necessary for adaptation and cooperation is necessary for learning. Cooperation is even necessary for competing.