Analogous organs: Different origin, same functions, Homologous organs: Same origin, different functions but same main structure// right? So, what is the case for the pectoral fins of a shark and a whale?
Are they analogous organs, because the two animals have different ancestors(shark-Some Chondrichthyes fish, Whale-some mammal) but have organs that do the same thing?
Or are they homologous organs, because the two animals have the same ancestor(A vertebrate animal) and have organs that have a similar structure?(I learned that it is alright for homologous organs to do the same function, for example the wings of a bat and a bird are homologous organs, although they do the same thing)