It's easy to ID a male. Females have tapered, cone shaped tails. Males have a thickened bulge at the "body" end of the tail. Their genitalia is kept inside until it is needed. They DO keep their junk in the trunk. Also, check the claws/nails. Females have about the same length nails, front and back, while males have longer front nails. Think "Freddy Krueger").