Sentences with phrase «male chimps»

jazzman, it's pretty clear when you see male chimps raping female chimps and the resulting trauma of the female that it is NOT a cooperative action.

Female but not male chimps in neighbouring communities sometimes swap groups, and Slocombe says it would be fascinating to find out whether they alter their calls.

Wilson says male chimps compete for access to small numbers of females, so they have an incentive to kill each other.

Male chimps tend to be a tight bunch.

Boesch and his fellow researchers found that male chimps frequently had sex with the females they had previously shared meat with, thus increasing their mating success.

The second study, also published today in PNAS, looked at what motivates male chimps to risk life and limb on patrol missions.

And it is normal behavior for dominant male chimps to throw things at visitors, such as sticks, branches, rocks, and even feces.

Male chimps that fall foul of the community hierarchy have been found disembowelled and castrated for their insubordination.

At the other end of the spectrum, adult male chimps may compete for food and even hunt, kill, and eat the baby baboons.

Sometimes a male chimp just needs to drum.

In Gombe, when a male chimp lumbers up to a friend and sprawls out on the ground, the friend will usually groom him by gently passing a hand through the fur on his back, chest, face, or leg.

Not exact matches

Young chimps just make the transition with mother chimp jumping in to intervene if the males were too rough with the initiates, but in humans rituals were created to make a stark delineation between men and children.

Anthropologist Jill Pruetz of Iowa State University in Ames recounts that the male faced the fire with «a really exaggerated slow - motion display» before redirecting his display at chimps sheltering in a nearby baobab tree.

«Santino has a great time scaring visitors, and as the group's dominant male, he is showing the other chimps that he can protect them.»

Groups of males would slip into rebel territory and savagely beat a single chimp.

Chimps are promiscuous, with females mating in rapid succession with many males.

After Leakey's death a chimp called Humphrey became alpha male, but he was weak and faced pressure from two brothers from the south, Hugh and Charlie.

But in a separate study, geneticist David Page of the Whitehead Institute at MIT and his colleagues found that the chimp Y, the male sex chromosome, contains debilitating mutations in a number of genes.

The patterns of collective violence in which young chimp males engage are remarkably similar to those of young human males.

When the primatologist Jane Goodall observed chimps in the 1960s, one of her subjects was a male she called McGregor, who suffered from polio.

As with chimps, however, female bonobos have more social power, and males can be highly competitive.

(Chimps are bigger and have a male - dominated society instead of a female - dominated one.)

It is a process that occurs in nature, with chimps and lions well known for killing other males» pups.

The largest males are as big as chimps, and the females of the two species are the same size.

By applying social network analysis — the mathematical theory behind Facebook that explains how different individuals are connected — Rushmore found that high - ranking mothers and their juveniles (as well as high - ranking males) were most likely to transmit diseases to other chimps because everyone in the community wants to be with them.

«He has a great time scaring visitors,» Osvath says, «and as the group's dominant male, he is showing the other chimps that he can protect them.»

In one study, a chimp named Santino — the dominant male at Furuvik Zoo in Gävle, Sweden — was observed collecting and piling caches of stones, then returning later to hurl them at people who had come to look at him.

If chimps drum merely to flaunt their physical prowess, dominant males should drum most often, the researchers reasoned, particularly when potential rivals or fertile females are nearby.

The international sequencing effort led from Max Planck chose a bonobo named Ulindi from the Leipzig Zoo as its subject, partly because she was a female (the chimp genome was of a male).

Chimp drumming is a male thing, as far as we know.

From 2007, Pimu was the alpha male of a chimp group living near Lake Tanganyika in Tanzania.

It's interesting because it gives us a potential insight into the behavior of the species, and that's because in chimps and gorillas, for example, the males have these large, slashing, daggerlike canines, and they use them both for fighting and in aggression displays when they are competing for females.

Unlike most primates, female chimps are loners compared to males.

This is because, unlike most other primate species, chimps live in patrilineal communities, in which the males of a community stick together and the females move on to other groups.

In chimps in particular, natural selection favors the production of lots of sperm because many males mate with fertile females, so males that produce more (or better) sperm have more offspring.

Both male and female chimps enjoyed the chance at a tipple, say the researchers, who found the palm wine alcohol content to be around three percent, about the same as a weak lager beer.

The competition to attract a mate, as well as internal sperm competition, puts intense pressure on chimp male genes to evolve rapidly.

I'm not sure if they ever intended it to be a movie about nothing more than Chimps, but once they discovered a male leader adopting and caring for an orphan, a beautiful story evolved that became the selling point of the film.

Despite some early troubles with two males vying to be the alpha, the chimps eventually learned how to operate the touchscreen and were able to choose which videos they watched.