Tree of Life Reconstructed
1553 of 3588

Tree of Life Reconstructed

July 27, 2010
The comb jelly could only have achieved its apparent seniority over the simpler sponge through one of two new evolutionary scenarios: 1) The comb jelly evolved its complexity independently of other animals, after it branched off onto its own evolutionary path; or 2) the sponge evolved its simple form from more complex creatures.

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