Board Thread:Lore Discussion/@comment-9062114-20140323022721/@comment-17114085-20140323123513

202.156.8.10 wrote: As long as two types of organisms can breed together and produce fertile offspring, they are generally considered as one species, if their DNA is congruent enough. This is one underpinning of biology in general. If two seperate species breed to create a fertile hybrid, then we could have speciation. If a species diverges, then we got speciation too

One way to look at it: Man and Mer are one species, Khajits are GM mer (Azura did some magic meddling I think and so become a new species through divergent evolution, Argonians have and will always be seperate, being reptiles.

--Some random science geek-- That is what I think.