Many tortoises hibernate each year when the weather gets cold and the

Many tortoises hibernate each year when the weather gets cold and the plants they eat are in very short supply or no longer available. A tortoise that is about to hibernate needs to have built up enough fat reserves in order to survive through winter until the spring. For a specific tortoise species, the chart shows the arithmetic mean ratio of carapace (upper shell) length to body weight prior to hibernation, as well as the minimum length-to-weight ratio that the tortoise needs in order to ensure the likelihood of surviving until spring.

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In order to ensure the likelihood of surviving the winter, a tortoise of that specific species discussed with a carapace length of 220 milli meters should weigh at least Select500100015002000 grams before hibernation, which is approximately Select500100015002000 grams less than the mean pre-hibernation weight of tortoises of the same carapace length and species.