Species Concept Debate

Yes. See for example https://en.wikipedia.org/wiki/Ring_species

You will probably find this article about the species concept interesting:https://plato.stanford.edu/entries/species/

Isn’t the human species a ring species?

I think of it like this: there's not really any such thing as a "species" in nature. It's an abstraction we developed to make sense of the world. In reality, organisms exist on a huge continuum composed of individuals which are more or less genetically similar/related. Often there are huge "chunks" missing where lines died out or went their separate ways. We arbitrarily declare that such-and-such collection of organisms between this point and that point on the

Consider: https://en.wikipedia.org/wiki/Ring_species

Here's one: https://en.wikipedia.org/wiki/Ring_species

Yes. Basically, the http://en.wikipedia.org/wiki/Species_problem.

It's not that simple. Suppose you have a group of animals spread across a large continent.The ones on the eastern side can breed successfully with the ones in the center.The ones on the western side can also breed successfully with the ones in the center.The ones on the eastern side are different enough from the ones on the west that they can't breed successfully.How many species are there? :-)It's a continuum, not a binary relation.It's very similar

It's not easy to define "species".https://en.wikipedia.org/wiki/Species_concept

There is no bright line between species, ergo there is no point we can stop and say "there! it's speciated!"'Species' just an arbitrary dividing line humans invented. The reality is much, much messier. We might call something a different species, but it might still be able to breed with some other species. It might not ever do so because of proximity. It might not ever do so due to some minor characteristic throwing off mate signalling. Maybe it does, but the offsprin