We are preparing the first of the updates to the way the Traits are calculated to more accurately reflect the true percentage. This will give breeders a clearer picture of how their animal traits compare to the total grid count for that species. You will see the rarity calculator and in world stats the .00 after the percentage this to help you see how rare things with similar percentage values differ.
We have changed the way the Teeth, Tail, Whiskers, Glow, Shine and Scale Traits are calculated. These traits are now calculated the same way as the Fur Eyes and Ears have been calculated for the last few years. We do feel this will give a better understanding of the traits.