the males have a long tail
and females kinda have a flattale
Males will chase the females and the male will chew at the females fins.
A male guppy is usually smaller with a bigger tail and colour all over their body, a female only has colour on their tail and has a gravid spot.
They may be male and female. The male be trying to tell the female that he is ready to spawn!!
Males have red stomachs
The males are smaller than the female
female caterpillars have little pincher's that come out the back of there body/butt that tell them apart from males males do not have this
the males have longer fins
the female parakets have lighter feathers and the males have dark feathers
males have smaller heads then females
females give birth.
Males are somewhat larger.
The female crawdads have a longer back and bigger claws compared to the males.
By there noses. A males nose is blue. A female is pink or a light peach
Because the males a penis and the females don't.