Teaching Evolution

A blog devoted to teaching evolution, both in our schools and in our communities.

Wednesday, April 06, 2005

Does a 1.77 Million-Year-Old Toothless Skull Show Compassion?

That's the conclusion of researchers who found the skull in the Republic of Georgia. The New York Times reports,

The well-preserved skull belonged to a male Homo erectus about 40 years old. All his teeth, except the left canine, were missing. The empty tooth sockets had been filled in by a regrowth of bone, the scientists said, indicating that the man had been toothless for at least two years before he died at what was then an old age. (The discoverers call him the "old man.")


Specifically, how could the man have survived that long, unable to chew the food of a mainly meat-eating society?

In interviews and the current issue of National Geographic, the paleoanthropologists said caring companions might have helped the toothless man in finding soft plant food and hammering raw meat with stone tools so he could "gum" his dinner. If so, they said, this was evidence of a kind of compassion that had been absent in the ancestral fossil record before the Neanderthals 60,000 years ago.

In the survival of the old man, Dr. David Lordkinidze said in National Geographic, "We're looking at perhaps the first sign of truly human behavior in one of our ancestors."

I remain skeptical. As fascinating a discovery as this is, I'm not convinced that it shows compassion. I think it's more likely that it shows that our ancestors were able to adapt to what would seem to be an impossible situation. That might be just as important a discovery.


At 2:15 AM, Anonymous clem said...

I find that argument absurd. For irrelevant medical reasons, I have been toothless for many years. I choose not to use dentures. Before I went vegan, I had no trouble eating any kind of meat. I still eat apples, hard candy, nuts etc. My lack of teeth limits my food choices hardly at all. The gums quickly toughen and, while some things take a bit longer to eat or are less comfortable, the difference is insignificant.


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