New firefly breeding patterns light the way for changes in color vision

A staple of warm summer nights, fireflies have charmed generations with their magical evening glow. Children setting out to capture them in jars can tell you the trick is to catch sight of each flash of light as the bugs fly around. What we might not realize as children is that fireflies emit their greenish … Continue reading New firefly breeding patterns light the way for changes in color vision

Advertisements

When two become one: the evolution and development of external genitalia on land

External genitalia are an important adaptation to life on the land, where eggs may dry out and there is no water for sperm to swim through. Reptiles, birds, and mammals have extremely diverse external genitalia, but they share a common evolutionary and developmental origin. Mara Laslo explains how comparative developmental studies are shedding insight on the development of these remarkable organs.