It’s all about the genitals: the secrets of fossil insects and amber

The invertebrate fossil record from amber provides insights into evolutionary history, and the climate of Earth's past ecosystems

"It's all about the genitals. It's often the only way to tell the difference between them."

I tried not to choke on my coffee as palaeoentomologist Richard Kelly explained the intricacies of his field of research - the study of fossil insects - during a refreshment break. "Genitalia are usually internal when they're not being used, or when the animal is dead. There was this one guy who invented a special device for extracting fly genitals. I can't remember his name though""