This episode of PBS's nature is about foxes and their adaptability. First this episode zeroes in on a family of red foxes living in Newfoundland, taking a red fox female and her brood from their birth to adulthood. There is a systematic seriousness shown in all that these animals do. Even their play as young is serious - it is about establishing a pecking order, and one in five young die as a result of this play. In one scene the mother fox is shown carrying one of the young who did not make it through a rough night of weather - and then eating the carcass. Also, the mother does not teach her young to hunt. This is something they do on their own, having their diets supplemented by mom until they reach adulthood.
One impact that global warming is having on this breed is that the red fox is finding it easier to survive in what was once the frozen tundra of Canada As a result, the arctic fox's numbers are dwindling, maybe because of climate change itself, but also because the red fox finds the arctic fox den to be a perfect home and is often killing and eating the arctic fox in the process of claiming that home.
It is also shown how the red fox thrives in suburban and urban environments. Some people leave out food for them so they can observe their habits, but foxes also find everything that they need in a city without the help of householders - sporadic forested areas for cover, and plenty of restaurants and homes where garbage pails harbor hearty meals. Foxes also find other animals in the city, such as rabbits, that they can use as prey. In one scene a fox is shown stealing something he needs from a car at night!
This is a good episode on the adaptability of a creature that is easy to find around our homes. They are often photographed for their cuteness, but that belies a crafty creature that is the definition of a survivor.