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Our internal organs aren't fully symmetric, though. The heart is more on the left, the spleen is on the left, and the liver is on the right.
by ahartmetz 7y ago
Our internal organs aren't fully symmetric, though. The heart is more on the left, the spleen is on the left, and the liver is on the right.
- klodolph 7y agoThis is a misreading of the parent comment—“there exists a point”. In general you can dig up problems with using morphology for your taxonomy, but you haven’t actually discovered a problem here. The bilateral animals go through a development phase where they are bilaterally symmetric.
- ahartmetz 7y agoOh, a point in time. I was thinking space. By the way, that part really needs clarification, because it can be trivially true - given indistinguishable cells, one to three cells or four cells on a plane are always mirror symmetric...