What does a rat pup look like? - briefly
A newborn rat is hairless, pink‑skinned, and about the size of a grain of rice, with closed eyes, tiny folded ears, and a short, visible tail. Its limbs are underdeveloped, and it relies entirely on its mother for warmth and nourishment.
What does a rat pup look like? - in detail
Newborn rats are tiny, measuring approximately 2–3 cm in total length, including a tail that is proportionally shorter than that of an adult. Their bodies are covered with a fine, downy coat that appears pinkish‑white or pale gray, lacking the dense, coarse hair seen in mature individuals. The skin beneath the fur is translucent, allowing the faint outline of underlying blood vessels to be visible.
The eyes remain sealed shut for the first 10–14 days, appearing as smooth, glossy surfaces. Ear pinnae are flat and undeveloped, lying flush against the head without the characteristic shape seen later. Limbs are short, with forelimbs ending in tiny, undeveloped claws; hind limbs are similarly diminutive and lack the ability to support weight. The tail is thin, almost hairless, and may appear slightly bent.
Key physical attributes include:
- Length: 2–3 cm (total, with tail)
- Weight: 1–2 g at birth
- Fur: soft, pale, downy
- Eyes: closed, non‑functional
- Ears: flat, undeveloped
- Limbs: short, weak, claws rudimentary
- Tail: slender, hairless, flexible
As development progresses, the coat darkens, eyes open, ears rise, and limbs gain strength, culminating in the appearance typical of adult rats.