I got a large female leopard tortoise off a guy 2 years ago. He kept her with a large sulcata male. I have kept her with my large leopard male for 2 years now. The first year she laid 30 eggs none hatched the second year she laid 30 eggs 7 hatched and to me they look like hybrids. Can they retain sperm that long? And some look full Leopard is is possible to have 2 father's?