How Butterflies Pattern Top and Bottom Wing Surfaces Differently
Researchers at the National University of Singapore have identified the gene transcription factors in butterflies that give rise to their different color patterns on the top and bottom sides of their wings.
Cicadas Race to Catch Up With Their Evolving Endosymbionts
In cicadas, a world of microbes has evolved to provide them nutrients. Researchers at the University of Montana have discovered that a cicada bacterial endosymbiont, Hodgkinia cicadicola, has split into at least two dozen lineages within cicada cells, in an apparent case of nonadaptive evolution.
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.
How to Make a Four-Eyed Beetle
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 […]