Board Thread:Lore Discussion/@comment-14011542-20140806041904/@comment-85.119.12.58-20200127081418

There is no in-universe explanation. Bethesda was simply lazy. They could use the same model for the body and clothing, they just had to add a new face model a tail model and different textures. I for one prefer the less humanoid design from Morrowind. Divinity: The Original Sin could also create sexually dimorph designs for lizard people without breasts.