facebook
twitter
rss
account
search
search
 

Monkey study sheds light on human origins

Jan. 13, 2009 at 3:18 PM   |   Comments

KYOTO, Japan, Jan. 13 (UPI) -- Scientists in Japan say 30 years of studying macaques monkeys has given them insight in the cultural evolution of humans.

Scientists at the Primate Research Center in Kyoto have watched generations of macaques pass stone-handling techniques from mother to child, said Michael A. Huffman, a primatologist at the center.

In their study, stone-handling included rubbing and clacking stones together, hitting them onto hard surfaces, picking them up, and cuddling, carrying, pushing, rolling and tossing stones.

The scientists found the stone-handling behavior changed with each generation as individual monkeys contributed their own patterns of stone-handling.

"Research on such transformation may shed light on the evolution of stone-tool use in early hominids," Huffman said.

© 2009 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Featured UPI Collection
trending
Notable deaths of 2014 [PHOTOS]

Notable deaths of 2014 [PHOTOS]

Most Popular
1
Mars rover spots rock shaped like thigh bone
2
Birds lost their sweet tooth, hummingbirds got it back
3
Fish can smell a bad coral reef
4
Parched land in the drought-riddled West is actually rising
5
Tech industry All Stars developing 'Star Trek'-style communication badges
Trending News
Video
x
Feedback