How to Distinguish Between Similar Traits in a Phylogenetic Tree?

AI Thread Summary
To distinguish between similar traits in a phylogenetic tree, it is crucial to identify unique derived characteristics for each organism. The discussion highlights a challenge in differentiating the snapping turtle and penguin, as well as the dog and rhesus monkey, due to overlapping traits. Participants suggest exploring additional traits to clarify distinctions, emphasizing the importance of uniqueness in evolutionary relationships. There is also a request to sort the organisms by evolutionary age to identify the oldest species. Understanding these nuances is essential for accurately constructing the phylogenetic tree.
Adriane
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Homework Statement


Draw a phylogenetic tree to illustrate the ancestry of the seven organisms chosen: dog, human, kangaroo, snapping turtle, penguin, rhesus monkey, bullfrog
  • At each branching point, identify the derived characteristic that creates the branch.

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The Attempt at a Solution


I've attached the chart I created to identify which organism has each trait. I think I might have made a mistake that I can't find, because how am I supposed to create the diagram when the snapping turtle and penguin have the same traits, as well as the dog and rhesus monkey?
 

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Definitely each animal should be unique in some way. Perhaps look for other traits? Something that will make penguin different from the turtle?

Can you start sorting these animals by their "age"? Which one of them seems to be the oldest in evolutionary terms?
 
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