EEB 122 - Principles of Evolution, Ecology and Behavior
Lecture 15 - Phylogeny and Systematics. The Tree of Life must be discovered through rigorous analysis. Genetic information is crucial because appearances can be deceiving, and species that look similar can prove to be genetically very dissimilar and not share recent common ancestors. Two criteria, used to determine what the "correct" Tree is, are simplicity and whether the tree maximizes the probability of observing what we actually see. (from oyc.yale.edu)
| Lecture 15 - Phylogeny and Systematics |
| Time | Lecture Chapters |
| [00:00:00] | 1. Introduction |
| [00:04:30] | 2. Grouping by Common Ancestry |
| [00:15:11] | 3. Misleading Analogies |
| [00:24:43] | 4. The Process of Phylogenetic Grouping |
| [00:35:04] | 5. The Logic of Grouping by Shared Characteristics |
| [00:42:56] | 6. Summary |
| References |
| Lecture 15 - Phylogeny and Systematics Instructor: Stephen C. Stearns. Transcript [html]. Audio [mp3]. Download Video [mov]. |
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