"It slowly opened up, and the wings were so dramatically different, it was immediately apparent what it was," said Johnson, who recognized in an instant that this butterfly was half-male and half ...

This Lexias pardalis butterfly is perfectly split down its middle -- with male coloring on the left side of its body and wings and female coloring on the right. It's a condition called ...

A PHOTO SHOP BUTTERFLY? NO FOLKS, I DON'T KNOW EVERYTHING. BUT I OFTEN KNOW WHO DOES. SO I RAN THIS BY A FEW OF MY ENTOMOLOGIST FRIENDS. THIS IS A GYNANDROMORPH. AN ANIMAL WITH BOTH MALE AND ...

It is especially noticeable in butterflies (such as this birdwing, Trogonoptera trojana), because many butterfly species already show sexual dimorphism — visible differences between male and female.

The team discovered that the culprit was a well-known male-killing bacterium called Wolbachia. It was there in the ovaries of every butterfly from an all-female brood; the team detected traces of ...

an Amazonian brush-footed butterfly, with its male counterpart. Males and females of this group look dramatically different from each other, a phenomenon known as sexual dimorphism, and the ...

The sex division occurs straight down the middle of the butterfly's abdomen An "extremely rare" half male, half female butterfly, known as a gynandromorph, has been found in Hertfordshire.

An unusual butterfly that is half male and half female recently caught the eyes of a volunteer at a butterfly exhibit at Drexel University in Philadelphia. Chris Johnson, a retired chemical ...