* Avoiding predators: Foxes are prey animals and are vulnerable to larger predators like wolves, coyotes, and eagles. By being active at dawn and dusk, they can avoid these predators, who are often more active during the day.
* Reduced competition: Other predators and scavengers are also more active during the day, meaning there is less competition for food when foxes are out hunting.
* Optimal prey availability: Many of the foxes' prey animals, like rodents, are also more active at night. This allows foxes to take advantage of a readily available food source.
* Cooler temperatures: Dawn and dusk provide cooler temperatures than the heat of the day, which can be especially important for foxes in warmer climates.
While foxes are primarily crepuscular, they can be active at night, especially if they need to find food or are raising young.
It's important to note that some fox species are primarily nocturnal, meaning they are only active at night. However, most foxes exhibit crepuscular behavior.