Do Avatars Have Nipples?

The Na'vi are non-mammals who have no use for nipples to breastfeed, let alone the perfect digitally rendered boobs sported by Neytiri, Zoe Saldana's character. ... Cameron went on to explain further his philosophy of the Navi character design.

Do the NA VI lay eggs?

There are two types of non-placental mammals - egg-laying mammals like the Platypus and pouched mammals which give live birth like kangaroos. Since none of the Na'vi had visible pouches, we can assume they're egg laying mammals.

Why do the Navi look like humans?

Director James Cameron said that in the first drawing of the main character, "Neytiri", she had fins, gills, and cat-like features. The species was changed to look more like humans. This was so audiences could relate (feel closer and empathise) to them better.