What does a sphinx rat look like? - briefly
A sphinx rat is hairless, with pink, wrinkled skin, large dark eyes, prominent ears, and a slender, muscular body that resembles a miniature cat. Its tail is thin and also hairless, completing the distinctive, feline‑like appearance.
What does a sphinx rat look like? - in detail
The Sphynx rat is a hairless laboratory strain distinguished by several anatomical traits that set it apart from fur‑bearing varieties. Adults reach a body length of 20–25 cm, with a tail adding another 15–20 cm. The skin is thin, pinkish‑gray, and exhibits a smooth, wrinkled texture across the dorsal surface; ventral skin is softer and less furrowed.
Key physical characteristics include:
- Head: Broad skull with a flattened occipital region; prominent, bulbous ears sit low on the skull and lack any hair coverage.
- Eyes: Large, dark, and slightly protruding, providing a wide field of vision; the cornea appears glossy due to the absence of eyelash protection.
- Nose and whiskers: Short, pink nose with well‑developed, long vibrissae that are the primary tactile sensors.
- Limbs: Short, sturdy forelimbs and longer hind limbs; paws are pink with visible pads and lack fur, exposing the underlying dermis.
- Tail: Thin, elongated, and hairless; the surface is covered with fine, translucent skin that shows the underlying vascular network.
- Coloration: Skin pigmentation varies from light pink to darker gray, depending on genetic background; some individuals display mottled patches where residual pigment remains.
Internally, the lack of fur correlates with a higher metabolic rate, necessitating a controlled ambient temperature to prevent hypothermia. The skin’s elasticity allows for noticeable movement during locomotion, and the exposed musculature provides clear visual cues of the rat’s posture and activity.