I'm not going to sit here and argue through it, but I'd just like to point out that there is some crazy dimorphism in real life. For example, females tend to be the big bosses in the bug world, whereas in the bird world the males tend to be more colourful and flashy than the females. Or it could be something simple with dogs where the male is just a big bigger than the female. I suggest reading up on dimorphism in animals, it's actually quite fascinating.
Anywho, the three hatchlings I had all grew up about a few minutes ago.... now need to decide if I have to get more Spitfires or not. Don't really like Waverunners that much.