Resistance of young wolf pups to inclement weather

Abstract

Based on information about young dog ( Canis familiaris ) pups, it was thought that wolf ( Canis lupus ) pups 0-2 weeks of age do not thermoregulate well. This problem, plus the relative immobility of young pups, was thought to explain why pups generally remain inside dens until about 3 weeks of age, and pups younger than 3-weeks-old were thought to be highly vulnerable to loss from exposure. this report details more information about the tolerance of young wolf pups to exposure.