4 min read
Are Foxes Related to Dogs? Canine, Feline, or Something Else
Foxes are canines — same family as dogs and wolves — but a separate branch that split 10–12 million years ago. Why they behave so much like cats.
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Topic
science
Some fox questions are really questions about biology: is a fox a canine or a feline, is it a mammal, how is it related to a dog, and what does the famous Russian tameness experiment actually show?
These articles set out the science with the citations attached, and say plainly when the evidence is thinner or more argued-over than the popular version suggests.
What these articles will let you do
- Place foxes precisely in the canid family tree and know why hybrids are impossible
- Explain the cat-like traits without reaching for cat ancestry
- Judge the farm-fox domestication experiment on the evidence, including its 2019 critique
6 articles on science
4 min read
Are Foxes Carnivores or Omnivores? The Technical Answer
Foxes are classified in the order Carnivora but eat like omnivores — meat, insects, earthworms and a great deal of fruit. Why both labels are used.
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4 min read
Can Foxes See in the Dark? Night Vision, Eyeshine and Slit Pupils
Foxes see far better than we do at night thanks to slit pupils and a reflective tapetum — but they hunt by ear, not by eye. How fox night vision works.
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4 min read
Do Foxes Have Whiskers? Yes — Including on Their Wrists
Foxes have long facial whiskers and, unusually for a canid, sensory hairs on the wrists. What vibrissae do and why they matter to a night hunter.
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4 min read
Is a Fox a Mammal? Yes — and Here's the Evidence
Foxes are placental mammals: they have fur, are warm-blooded, give birth to live young and nurse them. Where foxes sit in mammal classification.
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5 min read
The Domesticated Fox Experiment — and Why You Still Can't Have One
Six decades of selecting silver foxes for tameness produced dogs' behaviour in a fox's body. What Belyaev's experiment showed, what it didn't, and the pet question.
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Science: common questions
- Is a fox a canine or a feline?
- A canine — foxes are in the family Canidae. The cat-like traits, such as vertical-slit pupils, are convergent evolution rather than shared ancestry.
- Can foxes and dogs interbreed?
- No. Red foxes have 34 chromosomes and dogs have 78. No verified hybrid has ever been documented.
- Is a fox a mammal?
- Yes — a placental mammal in the order Carnivora, warm-blooded, fur-covered, giving birth to live young and nursing them.
Related topics
identification
Telling foxes apart from dogs, cats and coyotes — and from each other — using field marks that work at distance.
species
The twelve true foxes of the genus Vulpes, plus the grey fox and other animals that carry the name.
behaviour
How foxes actually behave: hunting, territory, social structure, daily rhythms and the reasons behind each.
Not what you were looking for? Browse every topic or all articles, and if the answer you need is missing, tell us — reader questions are where most of these articles started.