

But that’s because their muscles work differently to human muscles. I’m not an expert but I’m pretty sure their body does not break down muscles that are not in use, they can only ever gain more (or at least they lose muscle mass much more slowly than humans)
Not that obscure, but most orange cats are male since the orange gene is tied to the x-chromosom, so male cats only need one copy to appear orange. Female cats have to have the orange gene on both x-chromosom to be fully orange.
And usually only female cats can be calico/tortoise since the orange gene is co-dominant, so if they only have one copy of the orange gene both the orange and black will be visible.
A seemingly male calico/tortoise cat is usually intersex and sterile.