When examining the skull of the gorilla, it is established that there are many similarities and differences between their skulls and the skulls of the spider monkey and humans. With the gorilla skull that was on display many of the skull characteristics were pronounced. When observing the lower jaw or mandible of the gorilla it is shown that the molar teeth are very similar to that of a human. However, the front teeth are more outward and significantly larger compared to humans, especially the canine teeth which are used as a defense mechanism. Unlike humans, the gorilla contains a sagittal crest that connects the mandible to the skull and creates a stronger jaw for the gorilla for the grinding of their food.
According to Mcdonald (2006), chimpanzees have brains that at 300-400cc (18-24cu in). Besides that, male chimpanzees are 10-20 percent larger than females and are considerably stronger. They also have larger canine teeth, which are their main weapons. Otherwise, males and females have similar body proportions. In addition, height of male chimpanzees is about 77-92cm, while female chimpanzees are about 70-85cm (Mcdonald, 2006).
head and body length. “The Colobus Monkey doesn’t live in very many places. The Colobus Monkey lives in the tropical areas and forest. They are found in the tropical region of Africa.” (mcsd.org/webmac/schools/ogs/colobusmonk.htm) This backups information on where the primate is located.
Dental formula and total dentition Their molar teeth are adapted for crushing and not for cutting. Dental formula: Incisors 3/3, Canines 1/1, Pre molars 4/4, Molars 2/2 = 40. Its dentition is regarded as heavy because of their broad high-cusped cheek teeth are better suited for crushing than slicing. Still have sharp, double edged canines Teeth shape and size Raccoons have teeth designed to grind plants or tear meat. They have 4 long, sharp canine teeth that are used to tear food and molars to chew food.
Morphological: “Bonobos can be distinguished from chimpanzees by their more slender frame, longer hind limbs, shorter clavicle, and smaller molars. “It has been established through molecular genetic analyses that the chimpanzee genus, P. paniscus, is most closely related to humans and shares approximately 98% genetic identity” (AZA, 1998, p.1). Bonobos are generally smaller than chimpanzee genus, P. Troglodytes and are less dimorphic, males are only 30% heavier’ (Hodgson, 1998,p.1). “There is sexual dimorphism in the canines where the males’ are longer than the canines of the females”(Flannery, 2000, p.1). “Molecular biologists estimate that the bonobo diverged from its relative, the common chimpanzee, only about 1.5 million years ago”(Kano, 1990, p.1).
The skull is similar a chimpanzee, except for the more humanlike teeth. The canine teeth are much smaller than those of modern apes, but larger and more pointed than those of humans. Their pelvis and leg bones resemble those of modern man, and they were bipedal. Their bones show that they were physically very strong. Females were significantly smaller than males.
This is different than being a quadruped because they do not possess four feet since there is a physiological difference between their arms and legs: that being that their arms are longer. They do, however, possess the capability to run on their two legs for short distances. Distribution and Abundance The Gorilla beringei beringei species can be found in Central Africa and specifically be found in two areas: the Virunga Vol... ... middle of paper ... ... mountains. In the Bwindi population, the gorillas are known more for foraging for different fruits and because of this are known to climb trees more often than the members of the Virunga region. Conservation and Management There are some reasons that have contributed to why there are less than a 1000 mountain gorillas left in the world.
This implies that the human brain changed a lot after the human/chimp evolution. With the exception of the olferactory bulb (scent), all brain structures are larger in humans than in apes. The neocortex (part of the cerebral cortex), for instance is over three times larger than in chimps, even though chimps and humans are pretty close to equal in body weight. Each side of the brain is diveded by the central sulces into independant halves. Just before the central sulcus lies the post-central cortex, where the opposite body half (right side for left brain, left side for right brain).
Although there are many breeds of lemurs and more still being discovered, they are mostly all found and living in one particular island, and have different characteristics and behaviors than some other animals, they are still considered to be a primate because of their wonderful amazing features. Lemurs are known as prosimians. The meaning of prosimians is that they are considered to be a pre-primate (Darling 8). In other words, they were one of the first primates to be discovered and that they came before monkeys. Prosimians also means that lemurs are considered to have characteristics that are more primitive than those of monkeys and apes.
They are relatively smaller, slender, and more agile than other apes. They exhibit many characteristics of primates, including flat faces, enlarged brain sizes, grasping hands and feet, arms longer than legs, no tails, and broad chests. Male gibbons are just under 3 ft. in length and weigh about 15 pounds. Furthermore, the evolution of Homo erectus showed more human examination