Weasels and Ferrets are small animals that belong to the same family.
They differ from each other in terms of tail size, whether they are nocturnal or diurnal animals, overall body size, body appearance and colour, and domestication procedures, among other things.
Key Takeaways
- Weasels are small, wild carnivorous mammals, while ferrets are domesticated descendants of the European polecat.
- Ferrets have a more uniform, elongated body shape, while weasels have slimmer, more tapered bodies.
- Weasels are native to various habitats worldwide, while ferrets are kept as pets and used for hunting.
Weasel vs Ferret
A weasel is a small carnivorous mammal with a long, slender body. Weasels are wild animals that are known for their aggressive hunting behaviour. A ferret is a domestic animal that has been bred for its friendly and playful nature. Ferrets have been domesticated and are commonly kept as pets.

Weasels are more akin to diurnal creatures, as they are most active during the day. Theyโre also loners. The taming of weasels is quite difficult. They are characterised by a high level of aggression.
As a result, they are uncommon as pets. Because of their aggressive behaviour, the domestication of weasels is prohibited in some states. Red-brown-coloured weasels can be found. Their underside, on the other hand, is white.
Ferrets tend to congregate in packs. They are referred to as โnocturnal animalsโ since they are more active at night. Ferrets have been valuable companions to humans for over two thousand years.
Ferrets are widely domesticated and popular around the world. Ferrets are mostly black or brown. Their bodies, however, have a white hue to them.
Comparison Table
Parameters of Comparison | Weasel | Ferret |
---|---|---|
Family | Mustelidae family, a part of ten species of the seventeen species. | Mustelidae, a part of the โpolecatโ division of the same family. |
Overall body Growth | Shorter creatures (18-20 inches) | Longer creatures (24-26 inches) |
Size of Tail | Longer Tails (13 inches) | Shorter tails (5 inches) |
Feed on | Birds, rats, mice, etc | Rabbits, birds, snakes, rats, mice, etc |
Nocturnal/Diurnal | Active in the daytime. | More active at the nighttime. |
Domestication | Domestication is restricted. | Great companions of human beings. |
Body colour/appearance | Red-brown coloured shades, with a white underbelly. | Black and brown appearance, with the white mix. |
What is a Weasel?
Mustelidae is a family of weasels. They do, however, belong to 10 of the seventeen species in the same family. Ferrets are larger than weasels, while weasels are smaller.
Weasels, on the other hand, are lengthy creatures that can reach a length of eighteen to twenty inches.
The tails of weasels are longer than those of ferrets. Weaselsโ tails are normally between thirteen and fourteen inches long. Weasels eat other small animals, such as birds, rats, mice, and other rodents, to survive in the environment.
Weasels are more like Diurnal species because they are most active during the day. They are also solitary creatures.
Weasels are notoriously difficult to control. They have very aggressive personalities. As a result, they are rarely kept as pets. Weasels are not allowed to be domesticated in several states due to their aggressive nature.
Weasels can be identified by their red-brown colouration. They do, however, have a white underbelly.

What is a Ferret?
Ferrets are members of the Mustelidae family. However, they belong to the โpolecatโ division of the same family. Ferrets are long creatures in their own right.
These creatures have thick fur and can grow up to twenty-four to twenty-six inches in length. Weasels have longer tails than ferrets.
Ferrets have tails that are normally approximately five inches long. Ferrets eat rabbits, birds, snakes, rats, mice, and other small mammals to survive in the environment.
Ferrets are often seen in groups. They are dubbed โnocturnal animalsโ because they are more active at night.
Ferrets have been terrific companions to humans for over two thousand years. Ferret domestication is prevalent all around the world.
Ferrets come in a variety of colours, ranging from black to brown. They do, however, have a tint of white mixed in with their body colour.

Main Differences Between a Weasel and a Ferret
- Weasels belong to the Mustelidae family. However, they are a part of ten species of the seventeen species of the same family. On the other hand, A Ferret belongs to the family of Mustelidae, but Ferrets are a part of the โpolecatโ division of the same family.
- Weasels are comparatively shorter creatures than Ferrets. However, Weasels are long creatures and grow up to eighteen to twenty inches. On the other hand, Ferrets are themselves long creatures. These animals possess thick fur and grow longer, up to twenty-four to twenty-six inches.
- Weasels possess tails that are longer than Ferrets. The size of the tails possessed by Weasels ranges about thirteen inches. On the other hand, Ferrets possess shorter tails than Weasels. The size of the tails possessed by Ferrets ranges from about five inches.
- Weasels generally feed on other small creatures, such as birds, rats, mice, etc., for their survival in the ecosystem. On the other hand, Ferrets generally feed on rabbits, birds, snakes, rats, mice, etc., for their survival in the ecosystem.
- Weasels are more like Diurnal creatures, as they are active in the daytime under sunlight. They are solitary creatures as well. On the other hand, Ferrets can be spotted in groups. However, they are more active at night, hence are called โnocturnal animalsโ.
- Weasels are very hard to be tamed. They are highly aggressive in characteristics. Hence they are not kept as pets. The domestication of Weasels is restricted in certain states due to the aggressive behaviour of these small creatures. On the other hand, for two thousand years, Ferrets have served as great companions of human beings. The domestication of Ferrets is quite common and popular worldwide.
- Weasels can be spotted in Red-brown coloured shades. However, they also possess a white underbelly. On the other hand, Ferrets generally appear in the colour range of Black and brown appearance. However, they also have a tint of white mixed in their body colour as well.

- https://academic.oup.com/mbe/article-abstract/29/10/2905/1030692
- https://zoolstud.sinica.edu.tw/Journals/38.4/443.pdf
Piyush Yadav has spent the past 25 years working as a physicist in the local community. He is a physicist passionate about making science more accessible to our readers. He holds a BSc in Natural Sciences and Post Graduate Diploma in Environmental Science. You can read more about him on his bio page.