Male and female Bicyclus butterflies have different levels of the hormone ecdysone, which regulates their different-sized eyespots.
By Viviane Callier One of evolution’s oldest tricks is to apply old genetic building blocks at new times or places in development to create a new structure. But that isn’t […]
By Viviane Callier Beetle horns are tremendously varied structures, both within and between species: some beetles have them, some don’t. The ones that do have them have evolved many special […]
By Viviane Callier Insulin, the hormone that controls blood glucose in humans, is also produced by insects and, according to a study published in Nature, two different insulin receptors convey […]