PS263 Lecture Notes - Lecture 4: Courtship Display, Unit, Surface 2
Document Summary
Currently 4 major lines of evidence in support of the process of evolution: fossil records. Fossil records change systematically through geological layers inside the earth"s surface: striking structural similarities among diverse living species. Suggests common ancestor: selective breeding, observing morphological changes in existing species as a consequence of environmental changes. The strongest scientific theories are those supported by many scientific fields. Heritable traits associated with high rates of survival and reproduction are preferentially passed on to future generations. The ability of the organism to survive and contribute its genes to the next generation. Function of how well adapted the organism is to its current environment. Function is to establish a hierarchy of social dominance from top/most aggressive male to least aggressive male. Dominant males copulate more than non dominant males and are more likely to pass on their genes. Male approaches and indicates interest in some way.
