Fig. 2. Two sections of the swim-speed record from leatherback 2, illustrating type-1 and type-2 swim behavior. Type-1 is characterized by speed slowing then increasing over a 5-15 min period, bordered by intervals of very low or zero speed. Type-2 speed behavior is characterized by periods of continued high speed swimming without abrupt speed drops. Type-1 behavior is most common for all turtles, but the proportion of type-2 swimming increased during the last few days of each internesting interval.

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