Board Thread:Lore Discussion/@comment-25291590-20130317093523/@comment-10862555-20130614204244

I read a book in skyrim that said that Mer and Man could interbreed, but Beast Races are limited to their own kind. (Khajiit fur and tails, Argonian scales and tail and gills)

I think the races of Men and Mer are more like the real life term race, but the Betmer are another species entirely.