"The child will be almost indestructible, unable to get diseases, reach adulthood much faster, and live about three hundred years. If Tadeas attempted to mate with a jaguar female as cats, they have nothing but real jaguars. If they mate as humans, they have human children. If they attempt to cross mate as cat to human, they're infertile, and don't have anything. The only other way to create a shapeshifting jaguar, is to bite you. He doesn't want to do that to you, as eventually, you'd have to give up your families, as they will grow old and die, long before you do. It's even possible that your family could...