Scientifically, the term buffalo is incorrect for the North American species; its proper Latin name is Bison bison. However, common usage has made the term buffalo an acceptable synonym for the American bison. (from The American Buffalo in Transition, by J. Albert Rorabacher.).
Life cycle. Life cycle, in biology, the series of changes that the members of a species undergo as they pass from the beginning of a given developmental stage to the inception of that same developmental stage in a subsequent generation.
The Life Cycle. The life cycle begins with infancy and develops into childhood. At approximately 20 years of age, we celebrate adulthood and conclude our lives as senior citizens. During each of these stages, we have different needs, goals and experiences, but they all contribute equally to the human life cycle.