Fox

Foxes are small-to-medium-sized omnivorous mammals. They belong to the family Canidae. This family includes many animals like wolves and dogs. Foxes are known for being clever and cunning. This reputation has made them very popular in folklore. They appear in many stories across different cultures.

Foxes live on every continent except Antarctica. They are highly adaptable animals that can survive in many environments.

Physically, foxes have very distinct features. They possess a flattened skull and upright, triangular ears. Their snouts are pointed and often slightly upturned. One of their most recognizable features is a long, bushy tail called a brush.

Foxes are digitigrade, which means they walk on their toes. Unlike many other members of the Canidae family, foxes have partially retractable claws. They also have black whiskers, known as vibrissae. The long whiskers on the muzzle are called mystacial vibrissae. They even have carpal vibrissae on their forelimbs. These whiskers help them sense their surroundings.

Fox species are divided into different groups based on their DNA. Twelve species belong to the monophyletic genus Vulpes. These are known as the "true foxes." This group includes the red fox, the Arctic fox, and the fennec fox.

Other animals are sometimes called foxes but belong to different groups. For example, the gray fox belongs to the genus Urocyon. There are also South American canids like the maned wolf. Scientists use DNA analysis to understand these phylogenetic relationships. This helps us see how different species are related through evolution.

Adaptations in fur, or pelage, help foxes survive in specific climates. A fox's coat color and texture change with the seasons. In colder months, their pelts are richer and denser. In warmer months, the fur is lighter.

To prepare for summer, foxes moult once a year around April. This shedding process begins at the feet and moves up the legs and back. Different species have different physical traits for their habitats. The fennec fox has large ears and short fur to stay cool in the desert.

In contrast, the Arctic fox has tiny ears and thick fur to retain heat. The red fox typically has an auburn pelt with a white tail marking.

Foxes are omnivores, meaning they eat both plants and animals. Their diet includes invertebrates like insects and small vertebrates like birds or reptiles. They may also eat eggs and vegetation.

Most species consume about 15% of their body weight in food every day. They often cache excess food by burying it under leaves, snow, or soil. When hunting, they use a pouncing technique. They crouch to camouflage themselves and then leap with their hind legs. They use their sharp canine teeth to grip prey. The gray fox is unique because it can regularly climb trees.

Foxes have a complex system of communication through vocalization. Kits use high-pitched whines when they are hungry or cold. This stimulates their mother to provide care. As kits grow, they make yelps during play.

At one month old, they can make an explosive call to threaten intruders. Adults use different sounds for different needs. They might use a growl to tell kits to feed. They use barks to warn against intruders. In the wild, most foxes live between one and three years. However, some individuals can live up to ten years.

Conservation is important for many fox species. Some foxes, like the island fox, are near-threatened or endangered.

Habitat loss and hunting for pelts are major pressures. On the California Channel Islands, the island fox population declined due to a virus and predation by golden eagles. Conservationists had to breed foxes in captivity to save them. Removing nonnative grazers also helped native plants grow back to protect the foxes. Foxes are important to ecosystems. While some see them as pests, they can actually help farmers by controlling pests on fruit farms.