Board Thread:Questions and Answers/@comment-5039776-20121222140122/@comment-5771790-20121222142306

I do not think the tier of the dino has an affect on the bonus that the habitat provides.

Both my Lucky Mammoth (Tier 1) and Ghost Mammoth (Tier 0) are getting a 30% increase in my Groovy Glacier.

When I move my Ghost Mammoth and Lucky Mammoth to my Tranquil Tundra, they both get a 10% increase.