Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. Earth Science News .




ABOUT US
Humans may have driven ancient mastodons into 'civil war'
by Staff Writers
Ann Arbor, Mich. (UPI) May 7, 2013


disclaimer: image is for illustration purposes only

Humans may have played a part in the disappearance of mastodons after the last ice age by hunting and killing the most dominant males, a U.S. researcher says.

Killing the biggest males for food would have left younger males engaged in pitched battles to replace them, violent affairs that could have affected the normally stable animal societies, University of Michigan paleontologist Daniel Fisher said.

He cites as evidence puncture wounds from tusks and smashed bones found in fossils of female mastodons.

Similar affects can be observed in modern elephant populations when poachers kill the large male bulls that keep younger males in line.

Humans may have had the same effect on mastodons, Fisher said.

"Humans were the main driver of extinction, but when you look deeper into the complexity of that something very interesting starts to appear," he told The Daily Telegraph.

"The social structures of these animals were severely degraded as a result of the loss of mature males and in my view forms part of the extinction process," he said.

He emphasized the analogy with modern elephants.

The normal structure of elephant society is one where the old bulls keep the younger males in check," he said. "When the big bulls are pulled out of the picture, all hell breaks loose."

.


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
British retailer removes gender-specific toys after Internet protests
Newcastle, England (UPI) May 7, 2013
A British retail chain says it has removed gender-specific displays of "boys" and "girls" toys from its stores after a protest broke out on Facebook. Sean Gray, a customer at a Newcastle store of the Boots drug store chain who noticed two shelf units of toys separately labeled "Boys' toys" and "Girls' toys," snapped a picture and posted it on his Facebook page and also on official Boots ... read more


ABOUT US
Even Clinton couldn't get Led Zep to Sandy show

Brother admits defeat in tragic Bangladesh search

New York's Sandy lesson: evacuate and get boats

Global networks must be redesigned

ABOUT US
Electrolysis method described for making 'green' iron

Do-it-yourself invisibility with 3D printing

More effective, cheaper concrete manufactured with ash from olive residue biomass

World's First Full Color 3D Desktop Printer

ABOUT US
Researchers calculate the global highways of invasive marine species

Swedish companies breach salmon export ban: report

Panama, in energy crisis, closes schools, universities

Desalinization for China's water woes?

ABOUT US
NATO won't up presence in the Arctic: chief

Brazil rebuilding Antarctic base gutted by fire

Scientists sound alarm at Arctic Ocean's rapid acidification

NASA's IceBridge Finishing Up Successful Arctic Campaign

ABOUT US
Zeal to ensure clean leafy greens takes bite out of riverside habitat in California

Scientists alarmed by rapid spread of Brown Streak Disease in cassava

Dutch order probe into baby milk sales to China

Heat wave sears Canada's tulip festival

ABOUT US
Philippine volcano survivor recalls 'scene from hell'

More hurricanes for Hawaii?

Curious incident of China's quake dogs in the night-time

Four dead as Philippine volcano erupts

ABOUT US
Tanzanian troops head for UN mission to fight Congo rebels

Jihadists hunted in Tunisia 'former Mali fighters'

Nigeria's Islamists boost military threat

Deadly bombings hit drive to save Somalia

ABOUT US
Humans may have driven ancient mastodons into 'civil war'

Monkey math

British retailer removes gender-specific toys after Internet protests

Gentle touch and the bionic eye




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