Evolution

Paper Summary:

This paper discusses the evolutionary process and the changes it has led to in mammals. The paper provides scientific and statistical data regarding changes in animals' body size, mass and cranial capacity, in addition to oxygen intake levels and reproductive behavior. The paper then focuses on how evolution has led to changes in the diets of many mammals, which have affected the number and types of teeth, as well as in the sexual dimorphism in teeth between males and females.

From the Paper:

"These primates, generally grouped into the suborder of Plesiadapiformes, are known only to modern scientists by tooth remains. According to fragments found in Africa, these early primates were mostly fruit and insect eating animals (Milton, 89). Their dental records show three incisors, one canine, four premolars, and three molars on both the top and bottom jaw, with blunt cusps (Bramblet, para. 2). In the late Paleocene primates, the structure of the molars and incisors began to alter, showing longer incisors and variable molars, suggesting the beginnings of dietary differences, including consumption of increased plant materials (Bramblet, para. 3)."

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