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"All in the Family" icon

All in the Family

This is a flash-based tutorial on the PBS site that shows how morphological characters are used to build an evolutionary tree, and how this can lead to surprising results, such as tunicates being closer to humans than sponges, despite the seeming similarity of tunicates to sponges. Two other examples used are porpoise, shark, and wolf; and bear, opossum, and raccoon.... Show More


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