A run down on wolf cubs
The average weight that a male cub gains per week in the first 14 weeks of life
The number of days a female wolf if pregnant
The pups start to venture outside of the den
Pups are fully weaned and start feeding on meat
Their eyes change from baby blue to golden yellow in colour
Cubs gain their winter fur which will keep them warm during winter
A den is an underground hole or cave that shelters the wolf and her cubs from the weather and provides protections against predators. The expectant mother will construct a den during the summer, often using natural structures in rocks, banks or by renovating the burrows of smaller animals, making them roomy enough for a litter of pups. During the cubs’ first few weeks, the other will stay by their side, so the dens will be built no more than 500m (1,640ft) from a water source so she can drink, while the other pack members will hunt and deliver the food. The den will also be built south-facing so that it gets sufficient sun exposure, keep the area warmer and snow-free for her little cubs.