Modern Classification Using Evolutionary Relationships to classify living things.

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Presentation transcript:

Modern Classification Using Evolutionary Relationships to classify living things

Cladistics Showing relationships between organisms based on evolutionary relationships

Phylogenetic Tree AKA: Cladogram A diagram which shows evolutionary relationships between organisms.

Common Ancestor An extinct organism that shares ancestry with two or more organisms that exist today. There is a universal common ancestor to all living organisms!

How are humans, chimps, and gorillas related?

Hypothetical Cladograms

Comparisons of Hemoglobin DNA Chimp, Human: Gorilla, Human: Chimp, Gorilla: Gorilla Common Ancestor: Chimp Common Ancestor: Human Common Ancestor:

Conclusion Based on the data, who is most closely related to the common ancestor. What would the cladogram look like?

Evidence that can help scientists make cladograms DNA Fossils Physical Characteristics Geographic Evidence Embryological Evidence What type of evidence might help us figure out what T Rex tasted like?