Snow camouflage as Hugh B. Cott have echoed his observations, adding that other animals of the Arctic such as musk ox, moose, reindeer, wolverine and raven never become white "even in the coldest parts of their range". Cott noted that both animals that hunt, like polar bear and stoat, and prey animals like ptarmigan and mountain hare, require camouflage to hide from prey or from predators respectively. There is little experimental evidence for the adaptiveness of white as camouflage, though the ornithologist W. L. N. Tickell, reviewing proposed explanations of white plumage in birds, writes that in the ptarmigan "it is difficult
Return to White Plume Mountain the volcano's smoke—the face of Keraptis himself, say those who should know. Is the vile wizard immortal after all? Or is there an even greater threat building beneath White Plume Mountain? In 1999, several supplements updated the best-loved "Dungeons & Dragons" adventures from the past, among them "" (1999), "Dragonlance Classics 15th Anniversary Edition" (1999), "Ravenloft" (1999), "Return to the Keep on the Borderlands" (1999) and "Return to White Plume Mountain" (1999). Return to White Plume Mountain Return to White Plume Mountain is an adventure module for the "Advanced Dungeons & Dragons" roleplaying game released in 1999 by Wizards of