Rex, hairless, fold and dwarf

Lambkin cat breed: facts, temperament and care

A very rare, short-legged cat with a dense curly coat, made by crossing the Munchkin with the Selkirk Rex; its dwarfism is a welfare concern.

Also known as Lambkin cat, Lambkin dwarf, Nanus Rex, Lambkin dwarf cat

Typical weightAbout 5-9 lb (2.3-4.1 kg); no formal standard
CoatShort
How commonVery rare

Quick facts

Origin United States
Size Small
Typical weight About 5-9 lb (2.3-4.1 kg); no formal standard
Coat length Short
Coat Dense, plush, curly coat from the Selkirk Rex gene, in short or longer form
Colours and patterns Any colour or pattern

Recognition

Cat Fanciers' Association Not recognised by the CFA
How common Very rare

Temperament and care (1 low, 5 high)

Affection 4
Energy 3
Playfulness 4
Talkativeness 2
Grooming needed 3
Shedding 3
Good with children 4
Good with other pets 4
Happy alone 3
Trainability 3
Suits a small home 4

Best suited to

Suits Someone who understands the welfare debate, has found a breeder who documents the health of their cats, and wants a small, gentle curly-coated companion.
Less suited to A home that wants a cat with no inherited skeletal risk, or one that can jump to high places.

Health conditions to watch

  • Joint and spine problems linked to dwarfism
  • Osteoarthritis

About the Lambkin

The Lambkin is a dwarf cat that appeared in the United States by crossing the Munchkin with the Selkirk Rex. From the Munchkin it takes very short legs, and from the Selkirk Rex it takes a dense, curly coat. The breed is also sold as the Nanus Rex. It is very rare, and no major registry gives it championship status. It has been listed by small registries that cover experimental and rare breeds, and some of those groups no longer operate.

Because the breed is so new and so small, there is no formal standard that fixes its size or temperament. Descriptions from breeders are the main source, and they should be read with care.

Temperament and living with one

Breeders describe the Lambkin as gentle, social and affectionate, with a playful streak that comes from the Munchkin side and a calm one from the Selkirk Rex. Most are said to follow their people around and enjoy attention and lap time.

Short legs change how a cat moves. A Lambkin runs and plays at floor level and cannot leap as high as a cat of normal build, so it needs low steps or ramps to reach furniture. These cats usually get along with children and with other pets when the introductions are calm. Evidence on behaviour is thin, so meet the parents before you commit.

Care: coat, food and play

The curly coat tangles less than long straight fur, but it can mat if it is brushed hard or bathed often. Comb gently once or twice a week with a wide-toothed comb, and avoid brushing a dry coat vigorously, which can pull the curls out. Trim nails and check the ears.

Keep the cat lean. Extra weight loads the joints of a short-legged body, so measure meals and play daily. Use ramps, low shelves and a short cat tree, and keep the litter tray easy to step into.

Health

The Lambkin is a dwarf breed, and the Munchkin gene that shortens the legs is a form of skeletal dysplasia. Cats with this kind of body can be more likely to develop spine and joint problems, including arthritis. Breeding dwarf cats is a matter of welfare debate. Some countries and states restrict or discourage it, and several large registries will not recognise dwarf breeds at all. Little health research exists on the Lambkin itself. Ask your vet what to watch for and when to have the joints and spine checked.

Is it right for you?

Choose a Lambkin only if you accept the welfare questions around dwarf cats and can find a breeder who is open about the health of their cats. It suits a calm home with ramps and no need for a high jumper. If you like the curly coat but not the short legs, look at the Selkirk Rex or the LaPerm.

Profile last reviewed November 7, 2026

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