Essays on Eberhard

Abstract

A lot of demerits are associated with sexual selection in certain animals. Top of the list is the fact that this process has led to the development of certain characteristics which are costly to the carrier even to the point of increased chances of death by predation. This review however weighs the advantages derived from this process of sexual selection against this major argument and tries to point out that the benefits (individual and population benefits) derived from the development of these structures compensates for the cost incurred by its presence.

Introduction

Sexual selection is a special kind of natural ...

Abstract

Cars have always played an important role in the course of human development. In the past, man had a vision to introduce an invention to transport people along long distances. To turn the vision of a self-propelling automobile into reality, it took the development of a reliable combustion engine that operated on liquid fuel. In 1672, the first steam-powered vehicle as a toy for the Chinese emperor was built by Ferdinand Verbiest, a member of a Jesuit mission in China. As the automobile industry grew, so did the rate of environmental pollution. Car engines are considered to be the prime source of air pollution. The ...

Introduction

In ancient Rome, only the men who were regarded to be of higher status in the society got the best education and health care. Aristocratic women were also entitled to the special treatment that men got. However, this class of women made a very small percentage of the entire women population. Women from all levels however, had a major responsibility of bearing a child regardless of their social position or economic status. In ancient Rome, childbirth was a perilous experience for the women and their unborn children since there was a high rate of infant mortality. Maternal mortality was also very high in ancient ...