"It tells you that she can't regulate her internal body temperature. If you mix it up with her she's going to get faster as the fight goes on as her body heats up from the exertion, but she also can't sweat. She has to rely on the environment to get rid of the excess, so if you keep pushing her she'll overheat."

Of course, the same was true of him. No matter how hard he could throw a punch, sweating was a power that only mammals possessed. If he wasn't careful he could cook in his shell.