🦊 Arctic Fox Year Lab: Coat Moult, Snow-Cover Mismatch, Degree-Day Melt and the Lemming-Hunting Energy Budget

Follow an arctic fox through a year on the tundra. Its coat moults on a day-length schedule while snow follows a degree-day temperature schedule; warm the climate and watch the white-on-bare-ground mismatch grow, with Scholander heat loss, hunting success and the annual energy balance computed from it.