Primate Anatomy : Primate Primates

Humans evolve from apelike ancestors approximately five million years ago. Most closely related to us are our non-human primates such as African great apes, chimpanzees and gorillas. Scientific studies reveal that more similar traits are being share by human and our non-human primates compared to other animals. As human evolve from our apelike ancestors, changes in our DNA differentiate ourselves from our non-human primate. Even though we evolve from our non-human ancestors and share similar anatomical structures and characteristics, we are unique in our own ways. We possess specific qualities and abilities that differ from other species. There is a substantial gap between non-human primate and fully developed human. Here we will discuss

Primates are one of the most interesting mammals on earth, not only because of their complex social structures, but because they hold so many similar characteristics to humans. Primates are often cited as our closest living relatives and on two separate occasions I observed four separate species of primates at the San Diego Zoo that can justify their use of their physical characteristics and behaviors that may be similar as well as different to the other primates and ours.


Humans and non-human primates have many behaviors and characteristics in common. Apes and chimpanzees have been studies and closely watched for many years. Scientist and researchers and found many similarities between the apes and chimpanzees with humans. All three are hard working and work with tools. They also make these tools. Another similarity is the fact that they are very social with others of their breed. This is also true about other primates other than apes and chimpanzees, like lemurs, lorises, pottos, and tarsiers. Apes and chimpanzees are able to learn sign language and elementary math skills. All primates have nails instead of claws on their fingers and toes. Both non-human primates and humans all have opposable thumbs. They use these thumbs to be able to pick up things better and they are thumbs that are able to move and touch other parts of the same hand. Non-human primates, including humans, learn by watching their mothers and other family members. For example, chimpanzees learn to make stick tools to stick into holes to get termites to eat. They do this because the mothers never teach them

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.

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

Introduction This first lecture is designed to introduce the primate order in terms of its classification and to familiarise you with the animals so that the rest of the course makes some sort of sense. I will cover a working definition of what makes a primate, give you a general classification scheme, describe the major features that identify the groups within the classification and discuss some of the controversial areas of the classification. I shall treat the taxonomy as a synonym for classification which seems to be its commonest current usage, although you should be aware that some people consider taxonomy to be more about the principles behind the classification than the classification itself.

Primates first evolved from the trees of tropical forests, later to the ground. Through the times of prosimians 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 transforming environments interacting with natural selection, primates developed their own ways to move better (meaning changes in locomotion) with different types of bodies (meaning changes in body configuration).

The major primate groups are divided into two groups. The first main group are the Strepsirrhini’s, also called prosimians and include, Lemurs, Lorises and Galago’s. The second main group of primates are called haplorrhines and include, monkeys, apes, and humans

To better define and understand primates, it is important to breakdown the primate order. Primates can be broken into two suborders: Prosimians and Anthropoids. Prosimians are considered the

Primate life on earth began about 50-55 million years ago during the Eocene Epoch, although it is unknown how many different living species of primates there on earth. One likely fact is that the major groups of primates have been discovered, two of who are the Pongo Orangutan and the Pan Paniscus Bonobo. The word Orangutan translated from Malay means “Person of the forest” this is so because there are only two places you can find an Orangutan’s: Malaysia and Indonesia. The orangutan is an official state animal of Sabah in Malaysia. There are two different types of Orangutan’s; the Bornean Orangutan, which found on the island of Borneo and the Sumatran Orangutan, which is found on the Sumatra Island. Orangutans are known as the world’s largest tree climbing mammals, unlike other primates they spend the majority of their lives on trees. Orangutan habitat consists of primary tropical rain forest and old secondary forest at low elevations. Orangutans prefer high-density climate due to their diet, which consists 65% of fruit. Bonobos have been considered humankind’s closest relative and share 98% of our DNA. Bonobos can only be found in one country: the Democratic Republic of the Congo also known as DRC. Bonobos inhabit the second largest rainforest on earth, the Congo Basin. Bonobos prefer swampy rainforests and similar to the Orangutans, Bonobos are arboreal which are adapted to living on

Primates come from the order of mammals and are defined based on the morphology of the group of animals. Morphology is the branch of biology that concerns the study of the structures and forms of various organisms based on their structural features. The study involves both the internal and external primary functions of the structures of an organism including the parts. According to the identification of primate’s family they are divided based on the generalized and the specialized features of the organisms (Russell 2015). The generalized features of the organisms are the common traits that identify the organisms to the specific family of primates. These are the characteristics that the entire organism that is considered to be primates possess

New research conducted by Canadian experts at the University of Lethbridge suggests that new behavioral trends are manifesting among primates, which has interesting implications about how the behavior of all animals undergoes its own sort of evolution, including that of human beings. The study shows apparent sex acts on the parts of female, Japanese macaques on sika deer. These acts of interspecies relations were observed in Minoh, Osaka—a city in central Japan. As uncommony documented as interspecies relations can be, they are a known phenomenon, and it’s been observed as early as the Holocene epoch or even the Pliocene epoch by way of the extinct mammoth.

The difference is even reflected in the names of the suborders Strepsirrhini, meaning twisted-nose, and Haplorhini, meaning simple-nose. These suborders represent the major phyletic groups in the primate order and include the lorises, lemurs, and galagos within the strepsirrhines and tarsiers and anthropoids (monkeys, apes, and humans) within the haplorhines (Fleagle 2013). There are two nodes where we see a major divergence in nasal morphology, one in the early Eocene with the strepsirrhine/haplorine split, and around 35 mya with the platyrrhine/catarrhine branching. Once again the nomenclature reflects their nasal form with platyrrhine (consisting of new world monkeys, marmosets, and tamarins) meaning flat-nose, and catarrhine (consisting of old world monkeys, gibbon, great apes, and humans) referring to their downward facing noses. Descriptions of nasal morphology often focus on comparisons between these groupings of primates as it aids in a more complete understanding of when certain traits and phenotypes appear in the evolutionary record of primates. These taxonomic branchings are based on shared derived characteristics including the reduction of structural nasal complexity within anthropoids and tarsiers, and differences within the main and accessory olfactory bulbs between platyrhines and

One of the main reasons why we are so interested in the other primates is that by looking at them we can obtain some ideas of what our ancestor must have been like a few millions years ago. Even though, we are not descended from any modern-type monkey or ape, our lineage does appear to have gone through stages in which we were a medium-sized, reasonably intelligent creature with good binocular vision, hands that were good at manipulation and the ability to climb trees. An evolutionary trend in primates involves the development of offspring both before and after birth and their integration into complex social systems. Another trend in primate evolution has been toward a more elaborate brain. In addition to brain size and gestation periods,