AUTUMN MIGRATION AND SELECTION OF ROCK CREVICES AS HIBERNACULA BY BIG BROWN BATS IN COLORADO Thermoregulatory ecology of a solitary bat, Myotis evotis, roosting in rock crevices Roosting behaviour and roost selection of female big brown bats (Eptesicus fuscus) roosting in rock crevices in southeastern Alberta Thermoregulation and roost selection by reproductive female big brown bats (Eptesicus fuscus) roosting in rock crevices Presence of leukocytes in crevices of healthy and chronically inflamed gingivae Matrix metalloproteinase-8 concentration in shallow crevices associated with the extent of periodontal disease The significance of the local electrode potential within pits, crevices and cracks ☆ Crevices as refugia for stream diatoms: Effect of crevice size on abraded substrates Competing for crevices: interspecific conflict influences retreat-site selection in montane lizards. Apparatus and method for cleaning teeth