Baby squirrels are nursed on their mothers' milk for the first 75 days of their lives and supplement the milk by foraging for food after 49 days, when they start weaning. Baby squirrels are weaned over the course of 14 days as they add nuts and vegetables to their diet.
Baby squirrels eat hard vegetables such as broccoli, sweet potato and hard nuts out of the shell at seven weeks and can eat their favorite seeds, nuts and corn after nine weeks. Squirrels achieve independence between nine and 12 weeks, after learning social skills. The average lifespan of a squirrel is 12 years.