HOME >> BIOLOGY >> NEWS
Color vision drove primates to develop red skin and hair, study finds

ATHENS, Ohio (May 24, 2007) -- You might call it a tale of "monkey see, monkey do." Researchers at Ohio University have found that after primates evolved the ability to see red, they began to develop red and orange skin and hair.

Humans, apes and Old World monkeys, such as macaques and leaf monkeys, all have trichromatic vision, which allows these primates to distinguish between blue, green and red colors. Primatologists have disagreed about whether this type of color vision initially evolved to help early primates forage for ripe fruit and young, red leaves among green foliage or evolved to help them select mates.

Now a new study published online this week in American Naturalist by Ohio University researchers André Fernandez and Molly Morris rules out an initial advantage for mating and suggests that red-color vision evolved for non-social purposes, possibly foraging. But once developed, trichromaticism drove the evolution of red skin and hair through sexual selection.

Fernandez, the study's lead author, first began to question the strict correlation of food choice and color vision while studying howler monkeys in Costa Rica. He recently compiled data on the color vision, social and sexual habits and red skin and pelage of 203 different primate species.

The researchers then used a phylogenetic tree representing the evolutionary relationships among all the primate species under study to test hypotheses about the order in which the traits of red color vision, gregariousness (highly social behavior) and red coloring evolved. By comparing the traits of individual species in this evolutionary context, Fernandez and Morris could statistically deduce the probability of their ancestors having the same traits, as well if any of the traits were correlated with one another.

They found that the species that could discern red and orange hues were more likely to develop red and orange skin and hair, as well as highly
'"/>

Contact: Andrea Gibson
gibsona@ohio.edu
740-597-2166
Ohio University
24-May-2007


Page: 1 2

Related biology news :

1. University of Colorado licenses two influenza virus detection discoveries to Quidel Corp.
2. Color is in the eye of the beholder
3. University of Colorado invention may allow thirsty crops to signal farmers
4. Colorado River streamflow history reveals megadrought before 1490
5. University of Colorado influenza chip licensed by Quidel Corp. of San Diego
6. Varied diet of early hominid casts doubt on extinction theory, says Colorado U study
7. Colorado company to sell medical food products based on Wake Forest discovery
8. Early Earth haze may have spurred life, says University of Colorado study
9. Studying water quality in Colorado River Deltas Cienega de Santa Clara
10. Students from U of Colorado at Boulder and Harvard triumph in SIAMs Math Contest in Modeling
11. U. of Colorado team solves mystery of carcinogenic mothballs

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Color vision drove primates develop red skin and hair study finds

(Date:10/16/2014)... Cancer constantly wages war on the human body. ... a stalemate. In pancreatic cancer, this stalemate—known as ... becoming aggressively malignant, a phenomena that is poorly ... in the laboratory of Salvatore Torquato, a Professor ... the conditions surrounding tumor dormancy and the switch ...
(Date:10/16/2014)... efficiently, they are anything but sustainable: environmental damage ... is becoming increasingly evident. Despite their disadvantages, however, ... regarded as the sole possibility of achieving higher ... Bernhard Schmid, an ecology professor at the University ... agriculture and forestry. After all, a new study ...
(Date:10/15/2014)... , Oct. 15, 2014 Sandata ... for home and community-based care, today announced it ... implementing Sandata,s Santrax® Electronic Visit Verification™ Solution (EVV™) ... is a home health company founded in 1996 ... . The study details ...
Breaking Biology News(10 mins):Modeling tumor dormancy 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Sandata Announces Case Study with Quality Care Services, Inc. 2
(Date:10/20/2014)... Richardson, Texas (PRWEB) October 20, 2014 ... today announced that a team from Iowa State University ... * design contest. Using a Convey HC-2ex, the team’s ... than 14 times faster than the second place finisher. ... academic world embarked upon the month long challenge, using ...
(Date:10/20/2014)... , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" ... which brings Q3 orders to $5.8 million and provides a good ... in North America and one in the ... bid new projects at record levels," said Peter Bruijns , ... at the end of Q3 than they have been for any ...
(Date:10/20/2014)... -- GenVec, Inc. (NASDAQ: GNVC ) today announced the ... board of directors effective on October 24, 2014.   Dr. Horovitz ... its chairman from June 2006 to November 2013.  During his ... and Audit Committees of the board.  "We ... service to GenVec, and its stockholders," said Wayne T. ...
(Date:10/20/2014)... PLAINSBORO, N.J. (PRWEB) October 20, 2014 ... that the Sidney Kimmel Cancer Center at Thomas ... program. , Through the Strategic Alliance Partnership ... and OncLive will collaborate to raise awareness of ... cancer treatment, and other projects. Clinicians and other ...
Breaking Biology Technology:Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Zola P. Horovitz To Retire From GenVec Board 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
Cached News: