Essays on Brain Size

Describe which general fossil primate groups appear and radiate during the following geological epochs: Eocene, Miocene, Pliocene, Pleistocene. For each of the geological epochs, identify the general primate group that first appears and radiates during that epoch. In addition, give the time range in millions of years for each epoch and provide at least one example of a specific primate genus and/ or species that is representative of each general primate group. 2. List and briefly describe at least five elements of the post-cranial anatomy found in humans, but not in apes, that facilitate efficient bipedal locomotion. Provide specific ...

The evolution of man can be traced back in a time ranging ten million years ago. The development started from a common ancestor, who existed back around five to eight million years ago, who shared the same characteristics with the Orrorin genesis, and the Sahelanthropustchadensis. The development from the Australopithecus to the modern Homo sapiens shows a significant drift in their brain size, increase in body size, a shift in the diet as well as the growth in food expenditure and intakes (Anton & Snodgrass, p 2). The early man was characterized by a continuous increase in brain size, which ...

A Previously unknown species of hominins, Homo Naledi was discovered as recently as 2013, in the Dinaledi Chamber of the Rising Star cave system. Researchers found an extensive collection of fossils, belonging to 15 individuals of the same species. When examined, researchers found that the individuals belonged to a previously unknown species, because their morphology was different than that of other known species of primates. In their description, Berger et al. found that the hominin has unique cranial morphology, although closely related to other species of hominins, human-like adaptations of the hand and wrist, and humanlike foot and limb ...

` The evolution of human beings is closely related to the evolution of the human brain. Brain capacity demonstrates how humans evolved from primitive to modern forms. By examining brain capacity across three different species of primates, namely Australopithecuas Africanus, Homo Habilis and Homo Erectus, it is possible to notice how brain capacity drastically increased, and with it, other modifications also took place, thus allowing modern humans (Homo Sapiens) to evolve into the present form. Based on primary research, this paper will examine brain capacity as a fundamental evolution characteristic, and will trace the transformations which took place from one ...

Bob Marley once remarked that, “Herb is the healing of a nation, alcohol is the destruction.”  This statement is reflective of many people’s views on marijuana; it is considered the lesser evil in drug usage. Marijuana was mostly used for reaction until recently when the use for medical purposes was brought forth. The legalization of marijuana by 23 states could be ill-advised since research shows that it has significant side effects, potent risk of abuse, and little evidence to support healing factors. According to research by pediatricians Wright et al. and Krader, the medical benefits of marijuana have ...