Is Humanity considered a ring species?

Question

i was reading about rings and the qualifactions to be a ring species are to have some differences in the population groups and that only some populations were able to interbeed with others.
it seems obvious that there are anyotomical differences amoung the human population groups, but they can all interbreed with one another.
so, is haumanity a ring? if not then is suspect it must be in a catogory all it's own, because no other species has spread across the earth like we have.

Answer 1

Humans are simply one species with very small differences.

By ring species, are you referring to some species like birds that are spread all around the world and every one of them can interbreed with their next door neighbor, but not with those that are 1/2 way around the world?

If that is your reference, it doesn't apply to people.

Answer 2

Humanity is not a ring species because we can interbreed throughout our range.

Also, it's not true that no other species has spread across the earth like we have. Many insect and bird species are very widespread, as are several varieties of rodent that hop aboard ships even to this day.