What is the litter size for a cougar?

Cougars (Puma concolor) have litters of one to six kittens; the average is three or four.

Cougars are polygynous -- males reproduce with multiple females -- and females have kittens approximately every other year; there is no definite "mating season." The kittens' birth weight is between 226 and 453 grams (8-16 ounces), and they do not see, hear, play or grow teeth for ten days after birth. They continue to breastfeed for about 40 days, and will remain with their mother for about 15 months before dispersing.