This was the first time that an animal was discovered manufacturing his or her own tool. (Quammen, 110-112) Development of Tool Use In an article penned by Ann Minard for National Geographic News, she explains the once held theory that chimpanzees in the wild learned tool usage from humans is no longer valid. It was once thought modern chimpanzees developed tool usage by imitating farmers. New evidence suggests that chimpanzees have been using stones to crack nuts as far back as 4,300 years ago. (Minard, 1) When chimpanzee archeological sites were found in 2007 in West Africa, archeologist Julio Mercader along with primatologist Christophe Boesch observed the rocks used today by the chimpanzees in West Africa, the only chimpanzees to use rocks to open nuts, resemble those found at the prehistoric sites.
Giraffes and okapi. The Gale Encyclopedia of Science 4 Mitchell, G. and Skinner, J., On the origin, evolution and phylogeny of giraffes Giraffa camelopardalis. Transactions of The Royal Society of South Africa 58:51-73 Cope, E., 1888, The Artiodactyl. The American Naturalist 264:1079-1095 Baxter, K., 1962., The energy metabolism of ruminants. p. 326.
Journal of Zoology 282:6-12. Simmons R. E., L. Scheepers. 1996. Winning by a neck: Sexual selection in the evolution of giraffe. American Naturalist 148:771-786.
30). Giraffe camelopardalis is the scientific name (“Giraffe.” Britannica para. 8). There is a lot to learn about giraffes, such as how they were suspected to have evolved, their poaching, their physical appearance, and their behavior. The evolution of giraffes started with Jean-Baptist Lamarck in 1809 (Holdrege para.
By proving his studies on whales, bears, and finches false, it unlocked a better understanding of our relation to chimpanzees and the key genetic differences giving us a separate creation. We have proved Darwin wrong through ancient mummy corpses, proof of whales in biblical times, comparing human genetics with chimps, and radiocarbon dating bones of bears. All of these results fit perfectly in line with biblical stories. The Bible has been around and has been referred to since the beginning of time. In the First chapter in the bible, it mentions how on the fifth day, God created the sea creatures and birds, on the sixth day was the humans.
If you have variation, differential reproduction, and heredity, you will have evolution by natural selection as an outcome. In Darwin’s theory of natural selection, an example is given of giraffes. In this example of the giraffes, Darwin suggests that variation was a result of preexisting genetic differences among the giraffes. While this other biologist Jean-Baptiste Lamarck, believed that evolution occurred by the inheritance of acquired characteristics. He believed that the giraffe ancestor lengthened its neck by stretching to reach tree leaves, and then passed the change to the offspring.
The answer lies in the study of the works of others, and in the works of Darwin himself, through his theories, his travels and his scientific pioneering. The most influential evolutionary theories prior to Darwin were those of Lamarck and Geoffrey St. Hilaire, developed between 1794 and 1830. Lamarck suggested that species evolve through the use or disuse of particular organs. In the classic example a giraffe that stretches its neck slightly to reach higher leaves will gain in neck length, and this small gain would be passed on to its offspring. (Poirier, McKee, 1999) St. Hilaire, on the other hand suggested that the change was discontinuous, large in magnitude, and occurred at the production of offspring.
Study of the orangutan began in earnest in the 70s, when Louis Leakey dispatched Birutė Galdikas to join Jane Goodall and Diane Fossey in their study of the great apes (de Waal, 1995). While Goodall’s work with chimpanzees brought extensive public awareness to the animal (Quammen, 2003) and Fossey’s groundbreaking study of gorillas was so prominent a Hollywood film was based on her work (“The Gorilla King,” 2008), Birutė Galdikas and her orangutans didn’t capture the hearts of the public in quite the same way (Schwartz, 1987). That disregard is a shame, as there is much the orangutan can show us. One aspect is their place in relation to their family members in Hominidae; are the two species that make up the orangutan closer to humans than chimpanzees? Another topic worthy of further examination is their social organization, characterized by a complex social network with mostly solitary lifestyles (Strier, 2000).
What is a Lemur? Ask someone that question and you’ll be surprised how silly the answer may be. From being a fruit to a body part, it is sad how the general public does not know that the Lemur one of our oldest primates, an order which includes monkeys, apes, and us humans. There are about 32 different types of lemurs on our planet today. They originated from Madagascar, a large island that sits just off the coast of Southeast Africa.
Introduction: Chimpanzees are part of the non-human primate group. Though we share a common ancestor, evolution has pushed us in different directions. However this common ancestor causes humans to be curious about these creatures. As discussed in Jane Goodall’s video Among the Wild Chimpanzees we were once considered to be human because of our use of tools but once we observed these non-human primates using tools, this perception was changed forever. The question now at hand is if having the chimpanzees that we study in captivity makes a difference between studying wild chimps.