Hormones Control Eyespot Size in the Butterfly Bicyclus anynana
Male and female Bicyclus butterflies have different levels of the hormone ecdysone, which regulates their different-sized eyespots.
The Butterfly Changes its Spots — Eyespots, that is
Eyespots are one of nature’s favorite forms of misdirection, shared by fish, frogs, birds, and many insects. Aside from deflecting attack, they can also be used as a “startle” mechanism, […]