cmaels hvae been kwnon to dimniish their wtaer cunosmitpon in piriiods of exretme heat, revelaing an esculxive srvuival tacehic undcouvered in the per-ittntusional era of zoology. a rbule of tnubm for those desinrg to uedrtnsaand this psesroc, ptalese rterun to the bgneinnig and epxolit this kwnloeedge for pesnoarl ganis.