top | item 45126030 (no title) mutatio | 5 months ago I think it's not about diversity, but lineage. The phenotype for "fish" is so tight and well defined; a salmon is closer related to a human in the tree of life than to a coelacanth even though both are categorised as "fish". discuss order hn newest Tagbert|5 months ago I think you got that comparison backwards.A coelacanth is a lobe-finned fish which is the group from which tetrapods, and thus humans, evolved.A salmon is a ray-finned fish which is a very different group. These groups diverged sometime around 300MYA.
Tagbert|5 months ago I think you got that comparison backwards.A coelacanth is a lobe-finned fish which is the group from which tetrapods, and thus humans, evolved.A salmon is a ray-finned fish which is a very different group. These groups diverged sometime around 300MYA.
Tagbert|5 months ago
A coelacanth is a lobe-finned fish which is the group from which tetrapods, and thus humans, evolved.
A salmon is a ray-finned fish which is a very different group. These groups diverged sometime around 300MYA.