homology in biogeography and biology
jrg13 at PSU.EDU
Wed Sep 22 21:24:33 CDT 1999
>Please note: it is not simply "similarity of features" (or as Richard
>Jensen wrote: "a similarity reflecting common origin"), it is
>similarity of features *as a result of common ancestry*.
Agreed. this was implicit.
>But this seems to leave out the notion of descent from a common
>ancestor, which is at the heart of our understanding of homology, and
>has been for a very long time.
Again, this was implicit. Sorry I should been explicit.
Homology has a
>much more restrictive meaning than just similarity.
Agreed. In panbiogeography the homology is a common history or origin
More information about the Taxacom