I don't go to much by what the Biologist say anymore. Every year that we get a bear were suppose to send in 2 teeth to get them aged. My biggest bear weighed 325lbs dressed with a 20 5/16 inch skull and they said the bear was a 4.5 year old bear. I guarantee that bear was all of 12 years old minimum. Another bear I shot was a 150lb boar dressed, they told me this bear was 1/2 year old. That bear in most cases is 4.5. These guys are lucky if they hit 1 out of 5 with me so far. We still send teeth in just to get a laugh on what there guesses all are.