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Biologically whales are clearly mammals and not fish. Whether bony or cartilaginous fish are closer to mammals does not put that fact into question.
by msamwald 8y ago
Biologically whales are clearly mammals and not fish. Whether bony or cartilaginous fish are closer to mammals does not put that fact into question.
- dllthomas 8y agoIf we're measuring distance by MRCA, the question is equivalent to whether bony fish are closer to mammals or to cartilaginous fish. That framing does different things to intuition, whatever definitions we've agreed on.