How Eating Meat Made Us Human. Sorry Vegans.Breaking News
tags: science relevant to history
You see it in Nine Reasons Your Canine Teeth Don’t Make You a Meat-Eater; in PETA’s Yes, It’s True: Humans Aren’t Meant to Eat Meat; in Shattering the Myth: Humans Are Natural Vegetarians. (Google “humans aren’t supposed to eat meat” and have at it.)
But sorry, it just ain’t so. As a new study in Nature makes clear, not only did processing and eating meat come naturally to humans, it’s entirely possible that without an early diet that included generous amounts of animal protein, we wouldn’t even have become human—at least not the modern, verbal, intelligent humans we are.
It was about 2.6 million years ago that meat first became a significant part of the pre-human diet, and if Australopithecus had had a forehead to slap it would surely have done so. Being an herbivore was easy—fruits and vegetables don’t run away, after all. But they’re also not terribly calorie-dense. A better alternative were so-called underground storage organs (USOs)—root foods like beets and yams and potatoes. They pack a bigger nutritional wallop, but they’re not terribly tasty—at least not raw—and they’re very hard to chew. According to Harvard University evolutionary biologists Katherine Zink and Daniel Lieberman, the authors of the Nature paper, proto-humans eating enough root food to stay alive would have had to go through up to 15 million “chewing cycles” a year.
This is where meat stepped—and ran and scurried—in to save the day. Prey that has been killed and then prepared either by slicing, pounding or flaking provides a much more calorie-rich meal with much less chewing than root foods do, boosting nutrient levels overall. (Cooking, which would have made things easier still, did not come into vogue until 500,000 years ago.)
comments powered by Disqus
- How the US stole thousands of Native American children
- A history of selling out the Kurds, people with 'no friends but the mountains'
- 9 Landmark Supreme Court Cases That Shaped LGBTQ Rights in America
- A newspaper accused the president’s family of profiting from a foreign deal. The president sued.
- Here are the indigenous people Christopher Columbus and his men could not annihilate
- Serhii Plokhii on Ukraine’s Political Frontiers
- ‘Return to the Reich’ Review: Refugee Redux
- Black Perspectives Announces Online Forum Honoring the Life and Work of Dr. Rosalyn Terborg-Penn
- It was the nation’s largest auction of enslaved people. Now, a search for descendants of the ‘weeping time.’
- Historians Jon Meacham, Mark Summers, Keri Leigh Merritt, Michael Ross, Brenda Wineapple, and Benjamin Railton Featured in Article on Andrew Johnson and Impeachment