Male butterflies seek out mates with the same wing color as they find them more attractive, reveals new research. Genetics, vision and neural processing are all linked to mating behavior in Heliconius ...

The sperm of male butterflies has a strange property. About 90% of it is non-fertile -- essentially filler for the females' sperm storage organs that tricks females into thinking they have all the ...

Butterflies (Papilionoidea) come in a remarkable variety of colors and patterns, from the orange majesty of the monarch to the lustrous red and blue of the peacock butterfly, but all butterflies ...