What is a normal ejection fraction? A: Ejection fraction normally refers to measurements related to the left ventricle of the heart, and patients with an ejection fraction between 55 and 70 perc... Full Answer >
In fact, a single litter of babies may have different fathers. Gestation for ground squirrels lasts between 25 and 30 days. Litters can be quite large (up to 15 babies per litter), but the average size is only seven or eight babies.Of these, only five or six are likely to survive to maturity.fter conception occurs, gestation usually lasts 45 days. On average, mother squirrels welcome two to three babies, but she can have up to seven babies in a single litter. Typically, only one litter of babies is born to a mother fox squirrel per year. Two is the maximum possible.
At this time, they begin to disperse. Young of the late summer litters may remain with the female during the winter. Sexual maturation takes place during the following spring or summer. Mean life expectancy for a gray squirrel at birth is 1-2 years; the average life span of an adult is closer to 6 years. Records for maximum life span are 12 years in the wild and 20 years in captivity. Predators: The typical predators of small to medium-sized mammals prey upon gray squirrels.