
It doesn't just happen in dogs! I bred, showed and judged cavies for over 25 years, and naturally opened any book on the subject, before deciding to buy.
On the page with a new born litter I took a double take. The young were bald and blind. As cavies are often running around the pen with the afterbirth still attached, I was astonished. They are born fully furred with eyes open, and the milk teeth already shed. The litter was new born rats. And they sold thousands of copies.