Fig. 5

Probability density plots of (top) the change in internal tag temperature from the start of a dive to the tag’s coldest point during a dive (middle) the difference between internal tag temperature and ambient water temperature when a tagged whale surfaces from a dive (negative values indicate a tag’s internal temperature is colder than the ambient water temperature), and (bottom) the rate of internal tag temperature change during the post-dive interval (PDI). Data presented are for all dives recorded by recovered ADB tags. Data were collected from sperm whales tracked in the Gulf of Mexico during summer 2011 and 2013, and from blue and fin whales tracked off southern California during late summer 2014 and 2015