The Evolution Of Chimpanzees
Chimpanzees are categorized in the order primates; suborder Catarrhini and family Hominidae.They are the closet living relatives. Today, there are two species of chimpanzees: Common Chimpanzee (Pan Troglodytes) and bonobo (Pan Paniscus), both are in the same category as humans, monkeys, and gorillas. Humans share with them 98% of the genetic code and according to experts “believe our common ancestor existed 5 to 8 million years ago. Then two species broke off into separate lineages, one ultimately evolving into gorillas and chimps, the other evolving into early humans called hominids.”(Barss) and in order to obtain more protection and diversity in food, they moved to the trees. This migration could explain the changes in their body including
…show more content…
“In 2003, the International Union for Conservation of Nature made a very rough estimate of 172,700–299,700”(Vaidyanathan) chimpanzees are left in nature Recently, chimpanzees are protect by law in most of the countries, and many parks have been created even though many communities of chimpanzees are still outside the reserves. Due to their arboreal nature, the only predator they have, appear when they go on the ground.Leopards, snakes and humans are their most common …show more content…
The ontogeny development of the chimpanzees is similar to the humans, divided in long periods of time: infancy, adolescency, and adulthood. They have black hair that covers their body except their face, feet and palms. Their fur protects them from the cold and the UV rays. They rely on their color vision through their facing forward eyes which gives them a 3-dimentional vision necessary to jump. They have opposite big toes. Their arms are longer than their legs. They have grasping hands and no tail. They have 32 teeth like humans do. Their life expectancy can reach a maximum of 50-60 years in captivity. “Males and females have an average height of 816 mm”(Cawthon) There are noticeable social hierarchies among male chimpanzees, esencially in the access to the food and the access to the sexually active females. They are quadrupeds, terrestrial and arboreal. Many believe that Knuckle-walking is primitive.However; chimpanzees are also bipeds, which mean that they can walk with two legs to save energy and have more speed when
“In 2003, the International Union for Conservation of Nature made a very rough estimate of 172,700–299,700”(Vaidyanathan) chimpanzees are left in nature Recently, chimpanzees are protect by law in most of the countries, and many parks have been created even though many communities of chimpanzees are still outside the reserves. Due to their arboreal nature, the only predator they have, appear when they go on the ground.Leopards, snakes and humans are their most common …show more content…
The ontogeny development of the chimpanzees is similar to the humans, divided in long periods of time: infancy, adolescency, and adulthood. They have black hair that covers their body except their face, feet and palms. Their fur protects them from the cold and the UV rays. They rely on their color vision through their facing forward eyes which gives them a 3-dimentional vision necessary to jump. They have opposite big toes. Their arms are longer than their legs. They have grasping hands and no tail. They have 32 teeth like humans do. Their life expectancy can reach a maximum of 50-60 years in captivity. “Males and females have an average height of 816 mm”(Cawthon) There are noticeable social hierarchies among male chimpanzees, esencially in the access to the food and the access to the sexually active females. They are quadrupeds, terrestrial and arboreal. Many believe that Knuckle-walking is primitive.However; chimpanzees are also bipeds, which mean that they can walk with two legs to save energy and have more speed when