Bücher der Reihe Life Sciences Research Report

3 There are other trends in the attempt to meld evolution and development which immodesty permits me to add. Genetics has had an extraordinary continuing series of revolutions beginning with the rediscovery of Mendel and pro gressing through Morgan to the flash flood of molecular genetics and the structure of DNA.

In a second step, an attempt was made to characterize some clinically active compounds pharmacologically, and in a third, further compounds were developed based on aspects of the pharmaco logical profiles.

For example, hypotheses built upon the role of species packing might be tested by comparing evolutionary dy namics (both morphological and taxonomic) during another global diversi fication, such as the biotic rebound from the end-Permian extinction, which removed perhaps 95% of the marine species (see Valentine, this volume).

need for an interdisciplinary approach to research, although scientifically desirable and laudable, is not easily met by the individual investigator, a statement which I must now qualify lest it be taken as a faint-hearted view of the problems which confront us in this or any other field of disease-orientated re search.

normal and pathological mineralization in vertebrates but also with the interesting problems involved in the formation of in tracellular deposits of calcium oxalate in plants.

Although crisp demarcation is not possible, the first two themes broadly deal with biological aspects of the dynamics of single populations and the dynamics of systems with many species.