Cover: The predatory sea star Pisasterochraceus lives in the rocky intertidal, where it experiences harsh conditions. The temperature of the five arms and the central disc fluctuates largely at low tide. Yet the relationship between regional heterothermy and the response to sublethal and lethal conditions remains underexplored. Pincebourde et al. (pp. 2183−2191) studied the link between arm and central disc temperatures, survival and arm abscission. They found that arms were actively maintained warmer than the central disc to keep this vital part below the lethal temperature level. This strategy comes, however, at the risk of losing one or several arms. Photo credit: S. Pincebourde.