You can't. They aren't different from each other. They don't develop gender until adulthood, and that gender is determined by the need of that community at the time. Also, many frogs and toads have the ability to change gender if needed. For example, if somehow all of the female toads of a toad community got wiped out, leaving only males, some of those males would change gender in order to maintain the existance. Ever seen Jurassic Park? In the first movie they explain about using frog DNA to revive the Dinasours. They created all males so they could control the population. Later in the movie they find hatched eggs. The Dinasours were switching genders in order to create offspring. All based on fact (except for the bringing dinasours to life part)
you can't.
In the warriors series, Tadpole is a tom cat. (A Boy)
if on top of a parakeets nose is blue it is a boy if pink or white it is a girl.
hi you tell a boy from a girl lizard by the thickness of the tail the boys tail are more thick than girls
A girl Betta is dull and not as pretty as the male. But, a boy Betta is colorful and pretty to attract the female mate.
how do i tell if my my turtle is a girl or a boy?...
you cannot tell if the caterpillar is boy or girl
can you tell if a fish is a boy or girl by the tail
its harder for a boy to tell if a girl likes him
YOu can not tell the difference between a girl or boy starfish.
Females are usually larger. Males have a loose flap of skin under their throats.
blue sign=boy,pink/red sign=girl