Featured Research

from universities, journals, and other organizations

Unique Mating Photos Of Wild Gorillas Face To Face

Date:
February 13, 2008
Source:
Wildlife Conservation Society
Summary:
Scientists have released the first known photographs of gorillas performing face-to-face copulation in the wild. This is the first time that western gorillas have been observed and photographed mating in such a manner. The western lowland gorilla is listed as Critically Endangered as a result of hunting by humans, habitat destruction, and health threats such as the Ebola virus.

Western gorillas mating 'face-to-face' in Mbeli Bai in the Republic of Congo.
Credit: Copyright Thomas Breuer – WCS/MPI-EVA

Scientists from the Wildlife Conservation Society and Max Planck Institute for Evolutionary Anthropology have released the first known photographs of gorillas performing face-to-face copulation in the wild. This is the first time that western gorillas have been observed and photographed mating in such a manner.

Related Articles


The photographs were part of a study conducted in a forest clearing in Nouabalι-Ndoki National Park in the Republic of Congo that appeared in a recent issue of The Gorilla Gazette.

"Understanding the behavior of our cousins the great apes sheds light on the evolution of behavioral traits in our own species and our ancestors," said Thomas Breuer, a researcher at the Max Planck Institute for Evolutionary Anthropology and WCS and lead author of the study. "It is also interesting that this same adult female has been noted for innovative behaviors before."

The western lowland gorilla is listed as Critically Endangered as a result of hunting by humans, habitat destruction, and health threats such as the Ebola virus.

The female gorilla in the photograph, nicknamed "Leah" by researchers, made history in 2005 when she was observed using tools -- another never-before-seen behavior for her kind in the wild. Breuer and others witnessed Leah using a stick to test the depth of a pool of water before wading into it in Mbeli Bai, where researchers have been monitoring the gorilla population since 1995.

Researchers say that few primates mate in a face-to-face position, known technically as ventro-ventral copulation; most primate species copulate in what's known as the dorso-ventral position, with both animals facing in the same direction. Besides humans, only bonobos have been known to frequently employ ventro-ventral mating positions. On a few occasions, mountain gorillas have been observed in ventro-ventral positions, but never photographed. Western gorillas in captivity have been known to mate face-to-face, but not in the wild, which makes this observation a noteworthy first.

"Our current knowledge of wild western gorillas is very limited, and this report provides information on various aspects of their sexual behavior," added Breuer, whose study is funded by the Brevard Zoo, Columbus Zoo and Aquarium, Cincinnati Zoo and Botanical Garden, Max Planck Society, Sea World & Busch Gardens Conservation Fund, Toronto Zoo, Wildlife Conservation Society and Woodland Park Zoo. "We can't say how common this manner of mating is, but it has never been observed with western gorillas in the forest. It is fascinating to see similarities between gorilla and human sexual behavior demonstrated by our observation."

Scientists estimate that western gorillas have declined 60 percent in recent years due to habitat loss, illegal hunting, and Ebola hemorrhagic fever. The Wildlife Conservation Society, which is the only organization working to protect all four gorilla sub-species (also including the Cross River Gorilla, the mountain gorilla, and the Grauer's gorilla), has been studying gorillas and other wildlife in the Republic of Congo since the 1980s. In 1993, the Congolese Government, working in tandem with technical assistance from WCS, established Nouabalι-Ndoki National Park.


Story Source:

The above story is based on materials provided by Wildlife Conservation Society. Note: Materials may be edited for content and length.


Cite This Page:

Wildlife Conservation Society. "Unique Mating Photos Of Wild Gorillas Face To Face." ScienceDaily. ScienceDaily, 13 February 2008. <www.sciencedaily.com/releases/2008/02/080212134818.htm>.
Wildlife Conservation Society. (2008, February 13). Unique Mating Photos Of Wild Gorillas Face To Face. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2008/02/080212134818.htm
Wildlife Conservation Society. "Unique Mating Photos Of Wild Gorillas Face To Face." ScienceDaily. www.sciencedaily.com/releases/2008/02/080212134818.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nanoscale Sensor Could Help Wine Producers and Clinical Scientists

Nanoscale Sensor Could Help Wine Producers and Clinical Scientists

Reuters - Innovations Video Online (Jan. 30, 2015) — A nanosensor that mimics the oral effects and sensations of drinking wine has been developed by Danish and Portuguese researchers. Jim Drury saw it in operation. Video provided by Reuters
Powered by NewsLook.com
Dog-Loving Astronaut Wins Best Photo of 2015

Dog-Loving Astronaut Wins Best Photo of 2015

Buzz60 (Jan. 30, 2015) — Retired astronaut and television host, Leland Melvin, snuck his dogs into the NASA studio so they could be in his official photo. As Mara Montalbano (@maramontalbano) shows us, the secret is out. Video provided by Buzz60
Powered by NewsLook.com
U.S. Wants to Analyze DNA from 1 Million People

U.S. Wants to Analyze DNA from 1 Million People

Reuters - US Online Video (Jan. 30, 2015) — The U.S. has proposed analyzing genetic information from more than 1 million American volunteers to learn how genetic variants affect health and disease. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Rarest Cat on Planet Caught Attacking Monkeys on Camera

Rarest Cat on Planet Caught Attacking Monkeys on Camera

Buzz60 (Jan. 30, 2015) — An African Golden Cat, the rarest large cat on the planet was recently caught on camera by scientists trying to study monkeys. The cat comes out of nowhere to attack those monkeys. Patrick Jones (@Patrick_E_Jones) has the rest. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins