Evolving Humans on the Menu

Ant writes "BBC News is reporting that a popular view of our ancient ancestors as hunters who conquered all in their way could be incorrect. This was according to researchers who told a major United States (U.S.) science conference. They argued that early humans were on the menu for predatory beasts. From the article: 'This may have driven humans to evolve increased levels of co-operation, according to their theory. Despite humankind's considerable capacity for war and violence, we/humans are highly sociable animals, according to anthropologists.'"

Comments

Re:Pretty Obvious

[tmossman]

Further, it's not clear how valuable hunting was. Contemporary hunter-gatherers get more calories, more regularly, from gathering than from hunting. Raising the question, were the first weapons primarily defensive?

I don't have an answer for you regarding the weapons, but hunting is considered rather instrumental in our evolution as a species. Access to greater amounts of animal fats in our diet allowed us to deveolp the much larger cranial capacities than those from whom we evolved, helping put the 'sapiens' in homo sapiens, so to speak. From this paper:

More animal fat in the diet meant not only additional energy, but also a source of ready-formed long chain PUFAs, including AA, DTA(docosatetraenoic acid (DTA, C22:4, w-3), and DHA. These three fatty acids together make up over 90% of the long chain PUFA (i.e. the structurally significant and biochemically active fat) found in the brain gray matter of all mammalian species. (Sinclair, 1975)