01:070:111 Lecture Notes - Lecture 7: Hamadryas Baboon, Georges Cuvier, Reproductive Isolation

• School: Rutgers University
• Department: Anthropology
• Course: 01:070:111
• Professor: Scott

Document Summary

Change over time ending up at a certain goal. Fossil specimens (look different but similar to now) Speciation- new specimens/species are produced from earlier ones. Species- a group of species that interbreeds and produces viable offspring that are capable of reproducing. Members are reproductively isolated from other organisms. Once isolation happens, genes of one species won"t mix with another. Asexual species- offspring are a clone of the parent, look different (structure) May be morphologically different (but how different?) Species - a group of interbreeding/potentially interbreeding natural populations that are isolated reproductively from other populations. Horse and donkey = mule (cannot reproduce) Single species- cases of population that are not interfertile. Variation within a species is clinal (varies on a spectrum) 2 or more species that can hybridize. Based on the differences now, we can figure out when they diverged. May use genetic divergence, isolation to make species. Almost all species alive today (40 million-)