Primates
Since the beginning of time, man has evolved through primate evolution. Each primate has acquired different characteristics over a period of millions of years. The ecosystem has experienced an enormous change in this phase. Most major changes have occurred due to the phenomenon of continental drift. Other such factors are deforestation, natural calamities and, more recently, global warming. These changes have caused primates to become less arboreal and more and more terrestrial. In order to survive the pressures of natural selection, terrestrial life and other factors primates have developed more upright locomotion, changes in body configuration, increase in size and loss of hair. Over a period of millions of years, the
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The Coquerel's Sifaka are another example from this era. They originated from the forests of Northwest Madagascar. They eat mostly leaves, flowers and fruits. They are the second largest lemurs. Sifakas have long legs, which enable them to jump from tree to tree in an upright position. Another primate belonging to this era is the Galago. They are bushed babies varying from cat to rat size. The most striking features of the Galago are its huge eyes, long tail and large hind legs. Brain size is average and their vision and hearing are well adapted to nocturnal insect hunting. Their limbs enable them to make rapid leaps from branch to branch. They claim territory with there scent leaving smelly footprints.
The Crowned Lemur, which is also an example of this era, is found in extreme Madagascar. They eat fruits, flowers and leaves. They stay mainly in trees and are active during the day and at dusk. The crowns on their heads are furry head caps. Females have a lighter crown then males do.
The second epoch is Eocene (53 m.y.a.). A group of primates called the tarsiers came into existence in this era. They came from Southeast Asia in the tropical forests. Tarsiers usually leap onto their preys from lower branches and shrubs. They classify as prosimians and are related to lemurs and lorises. The similarities are pertaining to their body size, large ears and grooming claws. They have very long toes and fingers and their fingertips seem to be composed of a rubbery
As part of the only Old World Monkey group I analyzed the Silver Langur whose scientific name is Trachypitneus Cristatus. In this cage there was a total of 6 monkeys so there was very much activity. This
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.
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.
-The bonobo is the most recently discovered great ape in modern times. It was revealed in 1929 by German anatomist Ernest Schwarz that a skull once thought belonging to a juvenile chimpanzee was in fact a new subspecies of chimpanzee known now as the Pan paniscus, or bonobo. (Waal 6) During the Pleistocene epoch approximately 1.5 million years ago, the Congo River was formed in what is now the Democratic Republic of the Congo. (San Diego Zoo 2) The river geographically segregated groups and individual chimpanzees south of the river resulting in these chimps being reproductively isolated. Allopatric speciation took place as a response to new
Within this essay, we will study more in depth the behavioral as well as physical traits of two primates at a zoo from their interaction with their peers to their place in the group. This observation would enable us to further understand the possible existing correlation between humans and primates. First, I studied a female chimpanzee with her baby, and then, a dominant male gorilla, in San Francisco Zoo at about noon, on May 23, 2015, for an hour each. Even though they share some similarities such as having a large brain, living for a long time, and being bored in their enclosure, they are still different; when gorillas are the largest, chimpanzees are the smartest. In fact, chimps use tools to catch food, they would not be able to reach
The fundamental physical prerequisites of people , just like all organisms , are : water, for various metabolic process; foods, to provide energy, raw materials for developing entirely new living matter, as well as chemical substances required for vital reactions; oxygen, to discharge energy from foods materials; heat, to enhance chemical effects; and also pressure, to enable inhaling and exhaling” This like this article and think that it relates to . To be able to understand how humans evolved from early existence forms, we can quickly take a look at our closest relatives, the primates. Primates consist of us (Homo sapiens), the apes, the monkeys, as well as prosimians, for example, the lemur. We can easily be familiar with primate behavior
Non human primates’ social organization can provide useful information how human social evolution occurs. We will go over main points of how similar and different non human primates such as chimpanzees, orangutans, and gorillas’ society are compared to ours, humans.
Present Lemuroids are present in the island of Madagascar, off the shores of the African continent (Doyle). Their dentition pattern has what is known as a toothcomb (Larsen). They posses a pattern of two front incisors, 1 canine, three premolars, and three molars on both top and bottom. The two bottom incisors, and canines are long, finely spaced and procumbent, to facilitate the grooming of the coat (Doyle).
The studies of primate evolution have been developing throughout the years and now scientists are able to compare and contrast between several types of primate groups. One notable primitive characteristic that non-human primates and human primates have retained is the development and evolution of their dentition. Due to primates having long growth periods, scientists are able to research how primates have different dental characteristics and specializations in modern time (Larsen, 2008). By analyzing teeth, scientists are able to determine several factors, such as similar dental formation, growth, development, and diet preferences (Larsen, 2008).
I think that if culture is defined as learned behavior, than it is reasonable to say that primates posses a form of culture. Primates have been observed making tools to aid in collecting food and developing communication system, both of which are learned behaviors.
The second grade of primates evolved about 53 million years ago, in Eocene epoch. There are five tarsier species that all live in the islands of Southeast Asia, where they inhabit from tropical forest to backyard gardens (Jurmain, et al, 2011). They are considered to be closely related to lemurs and lorises (prosimian family) for the several traits that they share with Grade I primates while having some anthropoid features as well. However, tarsiers have distinctive characteristics that isolate them from other primates. They are categorized as the smallest creatures among the primate species and they are well known for their enormous eyes which is as large as its brain. They are normally nocturnal insectivores but sometimes carnivorous. They catch insects by jumping at them and as they jump from tree to tree, they even hunt for birds while in motion.
The Strepsirrhini group are “more primitive than other primates such as monkeys and apes.” (3). Lemurs have olfactory communication, have stink and spur fights. Lorises are known for their “nocturnal behavior and are extremely slow in locomotion”. (3). Galago’s also called bush babies because their calls sound similar to an infant, they can jump about 8 feet from a sitting position and have very strong eyesight.
Their environments are rainforest, woodlands and grassland. They spend the majority of their time on trees and eating on trees. They do not travel much and just scattered over their area. They are known to be omnivores and their diet consists of fruits, vegetables, seeds, nuts, leaves, blossoms, insects and occasionally other animals. They are very social and communicate by calls, touch, body language, gestures, and facial expressions.
Kavanagh, M. & Morris, D. (1983). Complete guide to monkeys, apes and other primates. London: Viking Press.
Chimpanzees are a genus of the great ape of Africa, with long black hair and log protruding ears. Humans know them for their intelligence and there very similarities. They have developed family ties similar to man. Over the generations they have even had developed tools out of natural materials. Food for chimpanzees is very important to them due to the excessive amount eating.