From all the readings I've done about boa growth, the second year brings the most growth a boa will have in their life time. My boa will be a yearling this month (jan.21) and I'm looking forward to seeing her grow into an adult. I measured her this week and she is 39 inches long. I fed her 1 rat per week. Once in a while I gave her 2. Can anybody share the growth surge of their boas from yearling to adult?