Introduction

Most people are aware of the many unique characteristics of the Earth that make life on it possible. These characteristics include such things as the composition of the planet and the atmosphere, the tilt of the axis, the presence of the Moon, the shape of Earth's orbit, and the distance from the Sun.

The March 1998 Impact article"Cloning - What is It and Where is It Taking Us?" discussed the procedure of cloning by somatic cell transfer. In that procedure, the nucleus from a cell derived from an embryo, a fetus, or tissue of an adult is inserted into an egg from which the nucleus has been removed.

The Duhem-Jaki and Merton Theses Explained

In 1966, J.B.