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Then we would expect all whales to be baleen whales, but they aren't. The fact that only one branch of cetaceans has baleen suggests that it came about after th
by chc 9y ago
Then we would expect all whales to be baleen whales, but they aren't. The fact that only one branch of cetaceans has baleen suggests that it came about after the cetaceans' common ancestor went in the water.
- dotancohen 9y agoI see, thanks. I think that the type of classification that you are referring to is called Cladistics.