Hi All! After loosing Peanutty Halloween, I received my new addition whom I've dubbed Jasper. I read online (nowhere official) that squirrel testicles drop at 4 months old. If this is the case, Jasper may be a girl, or possibly have retained testicles. I know this is rare in dogs (I'm a vet tech) but have never heard of it in wild animals. I've had Jasper 2 months tomorrow, the rehabber had him a few weeks and estimated him to be 3 months when she sent him to me. Our age estimate could be off, but he's gotten to be of decent size, so I'm pretty sure he is at least 4 months old.