 However, recent studies using reptile representatives encompassing all the size ranges leatherbacks pass through during ontogeny discovered the resting metabolic rate of a large "D. coriacea" is not significantly different from predicted results based on allometry.Rather than using a high resting metabolism, leatherbacks appear to take advantage of a high activity rate.Studies on wild "D. coriacea" discovered individuals may spend as little as 0.1% of the day resting.