Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

Eating Cooked Food Made Us Human

RATE THIS! +5
Posted in Science on 23rd Oct, 2012 11:30 PM by AlexMuller

Gathered around a blazing fire, our ancient ancestors probably huddled to pass the archaic kebab, munching cooked meat and figuring out how they might share it and plan to get more of it. Eating cooked food allowed these early hominids to spend less time gnawing on raw material and digesting it, providing time--and energy--to do other things instead, like socialize. The strenuous cognitive demands of communicating and socializing forced human ancestors to develop more powerful brains, which required more calories--calories that cooked food provided. Cooking, in other words, allowed us to become human.


A new paper examines the metabolic restrictions of a raw diet, and suggests that our primate cousins are limited by their inability to heat their dinners. It bolsters the cooking hypothesis of Richard Wrangham, a primatologist and professor of biological anthropology at Harvard who believes cooking is our legacy.


Brazilian biomedical scientists Karina Fonseca-Azevedo and Suzana Herculano-Houzel note that the largest primates do not have the largest brains, a perplexing question. Encephalization (a larger brain size per body size than you'd expect) has long been thought to be a key feature setting humans apart from other primates, and mammals as a whole, but there is no consensus on how or why this happened.


“We consider this disparity to be a clue that, in primate evolution, developing a very large body and a very large brain have been mutually excluding strategies, probably because of metabolic reasons,” the authors write. They’re the first to try and quantify these limits.
“You would think, ‘Surely people have thought about this stuff before,’” Wrangham said in an interview. “But nobody has ever thought about the fact that cooking gives you more energy.”


This is a central thesis of Wrangham's 2009 book, "Catching Fire." He argues that the control of fire allowed early hominids to not only cook their food, but obtain warmth, allowing them to shed body hair and in turn run faster without overheating; to develop calmer personalities, enabling social structures around the hearth; and even to form relationships among men and women--in short, to become human.



Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Medicine on 2018-05-23 01:38:21
    UCLA engineer develops 3D printer that can create complex.....read more
    Posted in Business on 2018-05-23 01:43:09
    China Launches Satellite Bound for the Far Side of the Moon..read more
    Posted in Business on 2018-05-21 16:28:10
    Anti-nuclear policies increased global carbon by 18%..read more
    Posted in Medicine on 2018-05-21 16:22:31
    Magic mushroom treatment improves emotional face.....read more
    Posted in Medicine on 2018-05-21 16:18:57
    Antioxidant found to wind back the clock on blood vessel.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be mainstream..read more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower cost.....read more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down to.....read more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US energy..read more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation?..read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me