Taxonomy is an ever-changing, controversial and exCitmg field of
biology. It has not remained motionless since the days of its founding
fathers in the last century, but, just as with other fields of
endeavour, it continues to advance in leaps and bounds, both in
procedure and in philosophy. These changes are not only of interest to
other taxonomists, but have far reaching implications for much of the
rest of biology, and they have the potential to reshape a great deal of
current biological thought, because taxonomy underpins much of
biological methodology. It is not only important that an ethologist.
physiologist. biochemist or ecologist can obtain information about the
identities of the species which they are investigating; biology is also
uniquely dependent on the comparative method and on the need to
generalize. Both of these necessitate knowledge of the evolutionary
relationships between organisms. and it is the science of taxonomy that
can develop testable phylogenetic hypotheses and ultimately provide the
best estimates of evolutionary history and relationships.