the female slightly resembles a duck .
only when they're breeding
I think we do call a female cobra, QUEEN cobra
Unless you are a professional breeder, I would not recommend it.
A female ball python can get 5-6 ft long, the care is the same unless you breed. Although, you will need a bigger cage for a female due to their size.
A male.
because the male will try and get on the female
if it is a female it will be sitting if it is a male it will be jumping
You cannot tell weather a caterpillar is male or female.
Worms are hermaphrodites. They are both male and female.
Snails are not male, nor female. They are hermaphrodites.
a male cockroach has an anal style while a female does not have it..
i think females gets larger to make more room for eggs