Researched and devised by Oliphant Jackson[?], MRCVS, the Jackson Ratio is a method of determining whether a tortoise, or a member of another chelonia species, is maintaining its optimum bodyweight, which is necessary for a successful hibernation
... age or older. The average household size is 2.25 and the average family size is 2.81.
In the village the population is spread out with 20.5% under the age of 18, 6.1% from ...