Older or ancient, especially relating to the geological past. (Hope that answers your question :))
Answer:
Mammals
Explanation:
Sea Otters are Mammals because they are apart of the weasel family and weasels are mammals.
predictive: I think that it will be sunny outside. I think I'm going to ace this test. I believe that my teacher has a pet.
non-predictive: I love playing outside! Math is my favorite subject in school. I am going to a movie this afternoon.