I Think Males Tend To Be Bigger But Bo Bo Is As Big If Not Bigger Than The Male Found Cats So Thats Not Always True. Miquelitos Heavier Than Pouncierge But Shes A Tad Longer. Precious Is Tiny But Thas Her Breed Size. I Have Never Had A Small Male Cat I Guess Shemp Would Be The Smallest At His Maturity He Was 9 Pounds.