When it comes to evolution, the drive to reproduce is one of the most powerful forces in animal penis design. Nowhere is this more evident than in the diversity of reproductive organs found across the animal kingdom. From barbed structures that induce ovulation to corkscrew designs that fit only a specific mate, the adaptations in the animal penis are as varied as they are strange. These bizarre shapes and mechanisms aren’t just for show—they serve specific functions to help species overcome obstacles to reproduction, ensuring that sperm reaches its intended target, that competing males don’t stand a chance, and that offspring have the best odds of survival. In this article, […]
