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:


(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based and ... 2022", published by MarketsandMarkets, the market is expected to be worth USD 18.98 ... Continue Reading ... ...      ...
(Date:3/22/2017)... March 21, 2017 Optimove , ... by retailers such as 1-800-Flowers and AdoreMe, today ... Recommendations and Replenishment. Using Optimove,s machine learning algorithms, ... product and replenishment recommendations to their customers based ... predictions of customer intent drawn from a complex ...
(Date:3/20/2017)... PMD Healthcare announces the release of its ... System (WMS), a remote, real-time lung health monitoring and ... is a Medical Device, Digital Health, and Chronic Care ... innovative solutions that empower people to improve their healthcare ... developed the first ever personal spirometer, Spiro PD, which ...
Breaking Biology News(10 mins):
(Date:3/27/2017)... , March 27, 2017 DarioHealth Corp. ... mobile health and big data solutions, today announced that ... insurance coverage option for U.S. consumers who want to ... DarioHealth has signed strategic alliance agreements with partners ... insurance coverage benefits, and if approved, will supply and ...
(Date:3/24/2017)... BEIJING , March 24, 2017 Sinovac Biotech Ltd. ... products in China , today announced that its ... the expiration date of the plan from March 27, 2017 to ... proposal. About Sinovac Biotech Ltd. ... Sinovac Biotech Ltd. is ...
(Date:3/23/2017)... ... ... proud to announce it has become the premiere team-building cooking event company in San Diego. ... such as Illumina, HP and Qualcomm, and is ranked #1 in its category on Trip ... its new team building format, a way for teams to not only interact with one ...
(Date:3/23/2017)...  BioPharmX Corporation (NYSE MKT: BPMX), a specialty ... today reported financial results for the quarter and ... an update on the company,s clinical development efforts ... are pleased to report that last year was ... Anja Krammer. "We achieved key clinical milestones and ...
Breaking Biology Technology:
Cached News: