Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Earth Science News .




ABOUT US
Did pre-human diet choice affect survival?
by Staff Writers
Baltimore (UPI) Jun 27, 2012


disclaimer: image is for illustration purposes only

A pre-human relative species ate only forest foods even though they lived near grassy savanna with tasty tubers and even juicy animals, U.S. researchers say.

Australopithecus sediba, an apelike creature with human features living in southern Africa 2 million years ago, exclusively consumed fruits, leaves and other forest-based foods despite the easy availability of savannah alternatives, researchers from Johns Hopkins University reported Wednesday.

"This astonished us," said Benjamin Passey, a Johns Hopkins University geochemist on the international team that conducted the study.

"Most hominin species appear to have been pretty good at eating what was around them and available, but sediba seems to have been unusual in that, like present-day chimpanzees, it ignored available savanna foods."

The findings provide clues about our various pre-human relatives, and why some thrived and continued to evolve while others became extinct, researches said.

"We know that if you are a hominin, in order to get to the rest of the world, at some point you must leave the forests, and our ancestors apparently did so," Passey said.

"The fates of those that did not leave are well-known: They are extinct or, like the chimpanzee and gorilla today, are in enormous peril.

"So the closing chapter in the story of hominin evolution is the story of these 'dids' and 'did nots.'"

"[O]ne thing people probably don't realize is that humans are basically grass eaters," Passey said. "We eat grass in the form of the grains that we use to make breads, noodles, cereals and beers, and we eat animals that eat grass.

"Eating grasses is a hallmark of humanity, and we are simply trying to find out where in the human chain that begins."

.


Related Links
All About Human Beings and How We Got To Be Here






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





ABOUT US
Out of the mouths of primates, facial mechanics of human speech may have evolved
Princeton, NJ (SPX) Jun 25, 2012
The throat and facial movements that twist the air pushing through your vocal cords into words could be rooted in the well-meaning expressions primates exchange with each other, according to two recent studies based at Princeton University. The researchers found that the oral-facial component of human speech mirrors the rhythm, development and internal dynamics of lip smacking, a friendly ... read more


ABOUT US
Record radiation levels detected at Fukushima reactor

Eviction pits Haiti police against protestors

Population displacement during disasters predicted using mobile data

Japan sorry for not using US radiation map

ABOUT US
Google rolls in tablet market with Nexus 7

Mercury mineral evolution

Zynga building hub for mobile gadget game play

Google ramps up competition in hot tablet market

ABOUT US
US beaches laden with sewage, bacteria: study

Greenpeace sabotages Australia-bound super-trawler

Over 150 natives occupy Amazon dam construction site

Cienega de Santa Clara unchanged after pilot run of Yuma Desalting Plant

ABOUT US
Canada builds up arctic region defenses

Greenland ice may exaggerate magnitude of 13,000-year-old deep freeze

Emperor penguins threatened by Antarctic sea ice loss

Melting Sea Ice Threatens Emperor Penguins

ABOUT US
Philippines rice terraces off endangered list: UN

U.S. urges action on global cattle disease

Gene discovery may mean more, better rice

Food security and climate change

ABOUT US
NASA chooses University professors for $151.7 million mission

Debby hits land as Florida braces for more floods

China quake kills at least four, injures 100

US Gulf Coast braces for Tropical Storm Debby

ABOUT US
Shell says close to launch of test drilling off Guiana coast

New revolt escalates endless DRC war

Hotel inside S.Africa's Kruger Park irks conservationists

Once-violent Mogadishu now growing

ABOUT US
Did pre-human diet choice affect survival?

'Brain-hacking' technology sought

Out of the mouths of primates, facial mechanics of human speech may have evolved

Google sets out to save dying languages




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement