Primates: The Characteristics Of Bonobo Monkeys

Gorillas are the largest group of primates and although they are known as being bipedal, similar to humans and other primates, they often use knuckle walking to move around. On observation, they have seems to have a more robust front appearance than their hind legs and behind. Their cranium is taller than other primates and lower mandible more protruding than their snout. They also have human-like ears that are parallel to their eyes and are small in size. They have

What makes a primate a primate? A primate is defined by its many incredible features. A primate is a mammal that has certain characteristics such as: flexible fingers and toes, opposable thumbs, flatter face than other mammals, eyes that face forward and spaced close together, large and complex cerebrum, and social animals. What makes a primate a primate is its characteristics. Some of the physical features primates are identified by is their teeth, snouts, eyes, ears, arms, legs, fingers, and toes. Human evolution is a big part of humans being primates, and having similar features and characteristics make humans to be considered to be a primate, but both humans and non-humans have differences.

-Bonobo’s display a varied degree of sexual dimorphism, which is a characteristic specific to either male or female sex. When comparing the two sexes, males are more muscular and hold an average weight of 95 pounds compared to an average of 82 pounds and a slighter built female, a 15 percent weight difference between them.  Sexual dimorphism is also apparent in that males possess a unique dental trait, long canines, a feature that females lack.  Both sexes are similar in that neither has a height advantage, averaging 2.3 to 3 feet in height. (Waal 24)  Bonobo’s possess long, fine black hair covering most of the body and black colored hands and feet.  Their black faces feature wide, thick walled nostrils and long black facial hair that often covers their small ears.  Their head hair

Thus, I was able to observe some similarities among these species. The way the female chimp used tools, and her fingers to grab food, how she used to be on her feet, freeing her hands, groom her child, educate her offspring, sleep with him while snuggling, use a lot of face emotions to convey a message to an individual; she smiled at her baby, laughed when playing, and tickling him, remind me of human. She also has a flat pink face, hands’ palm, and feet sole as humans do. Furthermore, the gorilla was also really human when he protected his eyes from the intense sunrays, following the movement of the sun, and sat in the shade, mated with a female, scratched his head, and bottom, and put his finger in his nose. I think that these humans’ pattern appeared for similar reasons as in the Primates. For instance, when the gorilla scratches his bottom, it is because the area is itchy, and he wants to remove what is indisposing him. In addition, the mother chimp educates her kid to transmit knowledge throughout generation, which is the same for humans, who go to school.

This paper aims to study the traits of non-human primates. By observing two types of primates including Common Squirrel Monkey (Saimiri sciureus) and Western Gorillas (Gorilla Gorillas), I try to find out their characteristics, pattern of their behavior, and differences between these two primate species. Especially, characteristics and behavior such as social interaction, food acquisition and intelligence will be discussed and compared in this paper. In order to enhance the persuasiveness of my observation, I recorded and examined at least 25 distinct characteristics of both Common Squirrel Monkeys and Western Gorillas. It is also helpful for me to compare these two primates. Apart from exploring the primates’ traits and differentiation between them, this paper will discuss the effects of captivity. How being in captivity and on display in a zoo would influence their behaviors and emotions? The observation was a great success and I have successfully derived with a hypothesis base on our observing data. The ultimate goal of this paper is arousing humans’ awareness of the importance of studying primates.

Orangutans (Figure 3) are our first cousins since they share 97 percent of our genetic material. Contrary to other apes, orangutans are semi solitary which is unique in its social organization (3). Adult males which are the most solitary, and they associate with only their current, former, and potential consorts. For the semi-solitary orangutans, the only playmate is its mother. Even female adults are more social than male ones, rarely they groom, touch, hold hands, chase, or fight. On rare occasions, female adults may groom; however, it lasts only few seconds. Sometimes, female adults meet and travel with one another to express the close relationship. The long call by a male orangutan expresses an alert to others about his presence. Usually, other orangutans only react if the call is close by or aggressive towards them. Male orangutan can use vocalization to express that he is angry and frustrated, and that call signals a threat to another male (3). Female orangutans also produce vocalization when they get upset by the presence of another male.

Primates have some features that support them for the arboreal life. First, primates have developed grasping extremities with the divergent hallux and nails instead of claws. These features help them grasping branches better. Second, primates have enhanced vision with the optic convergence, which helps them look straightforward. They also have postorbital bar to protect the eyes. Third, primates reduced the olfaction that is not useful for arboreal life. Fourth, comparing to the other mammals, primates have large brain consider to the body size. The large brain helps them to process the complicating reactions, and thinking. Haplorrhines primates have some unique derived traits: the loss of tapetum lucidum, which enhances the vision in the darkness; and haplorhini, which is dry external nose. The anthropoid primates have developed some derived traits. They have postorbital bar with closure, and this makes a complete bony ring surrounds the eyes. They also have fused mandibular symphysis. The Platyrrhines have the dental formula 2.1.3.3/2.1.3.3. The Catarrhines have dental formula 2.1.2.3/2.1.2.3. The Cercopithecoids have the bilophodont molars to enhance the chewing ability. The hominoids are the most developed primates, which have some derived unique traits. They have larger brain, loss of tail, longer arms than legs, broad thorax with more muscles, and highly mobile shoulder.

Primates first evolved from the trees of tropical forests, later to the ground. Through the times of promisians to human, many characteristics has been represented due to the adaptations to new environments and resulted in evolutionary changes. The Earth has encountered several geological and climatic changes over time. For the primates existed at that time had to adjust itself especially in body configurations and locomotion in order to better survive. It is important to be aware of this information since we are the part of occurring changes as well. Throughout the evolution owing to

The first type of primate I observed was a Bolivian Grey Titi Monkey which is a type of new world monkey species found in areas of eastern Bolivia and also can be found in Brazil. The scientific term for this species is Callicebus donacophilus. These types of monkeys have medium sized body

The bonobo has pink lips, a black face, and black hair that parts straight down the middle of its head. It has tuff, black fur. It’s smaller, leaner, and darker than its cousin, the chimpanzee. Females weigh about 63 pounds and males weigh about 85 pounds. Male bonobos grow to be about 4 feet tall and females grow to be about 3.5 feet tall. They usually live to be about 60 years old. They eat fruits, leaves, flowers, insects, and small mammals. They are secondary consumers because they eat small mammals (primary consumers), leaves (producer), and bonobos are being hunted by humans.

Due to the higher degree of intelligence, different types of primates engage in different complex social groups. The three main ways to group primate societies are monogamous, polygynous and multi male multi female groups.

I decided to look at the sexual behavior of bonobos because they are known for their frequent sexual behavior. Though they are not one of the types of great apes mentioned in the book, a bonobo is nonetheless a great ape that belongs in the same genus as the common chimpanzee. Furuichi et al. observed bonobos in their naturalistic habitat in Wamba, Democratic Republic

When looking at bonobo populations in comparison to chimpanzees, a hypothesis to is that there is so little data done on

It is widely assumed, and asserted by advocates of animal research, that those similarities that exist are most pronounced in non-human primates (NHPs) compared to other non-human animals, given their relatively recent evolutionary divergence from, and high degree of genetic identity to, humans. Therefore, they argue, NHPs must serve as the best models for researching human biology, in cases where human subjects

Beginning with the most intelligent of the bunch, the (western lowland) gorillas I observed were quite inactive. This is certainly so because they are known to only be hunted by man leaving no competition outside of their own species. This fact makes it apparent why these kings of the jungle sit around so often. In the wild and even in zoos it may be difficult for a male to find mates because groups of gorillas are POLYGYNOUS. So usually one male is the father of all of the offspring. Being this way, male gorillas must display DOMINANCE over others and even stand their ground against an incoming male that may threaten the family. Going back to how they sit all day, gorillas are able to do this because they don’t even have to move to replenish energy for the reason that they are grass and leaf eaters (vegetarians). Not having to move very much makes gorillas capable of having a low-quality diet.