All monarch caterpillars look the same, whereas the adults have different abdomen shapes and the male butterflies have to black spots that the females lack. That's why we can distinguish the adult males from the adult females.
If you were to dissect monarch caterpillars, there would be at least one difference. The males have two bright red organs that the females lack, but there is no way of knowing which are male and which are female just by looking at the outside of the caterpillar.
The answer to that is that you don't know if a caterpillar is a male or female, not until it's a butterfly, then, you can tell buy color and wings.
(my theory is you can tell by colors of caterpillars as well, but i am not sure.
The caterpillar is the pupal stage of the Moth and are indistinguishable from each other until they emerge from their cocoon as a moth.
i think females are much larger than males, or i think males have gray heads and bodies
a girl has pinchers on there backs and a boy doesnt
If you are looking at the caterpillar from above, no you cannot. But if you took it to a specialist they would probably answer your question whether its a boy or a girl.
You usually can't tell until they make a chrysalis. Unless you want to dissect them before then.
A boy caterpiller have a red bum or a big spike in the back, where as a girl caterpiller just has a bum the colour of her body.
I don't think you can until it changes into a butterfly or moth.
If you are looking at the caterpillar from above, no you cannot. But if you took it to a specialist they would probably answer your question whether its a boy or a girl.
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.
by asking its mother if it is a girl or a boy and plus you can tell by the face
you can tell if its a girl or a boy byits butt or eyes. if its a girl, it will have small pupils. if itsa boy, it will have large pupils.
i don't know if it is a boy or a girl
It's not possible to determine the sex of a caterpillar. However, adult butterflies may be sexually dimorphic, meaning that the sexes can be told apart. Males generally have brighter colors or different patterns than females.