While we typically associate pregnancy with females, there’s a fascinating twist in the animal kingdom where males take on this life-giving task. Imagine a father figure, not just providing and ...

What’s so startling is the size difference: Males are about the size of a walnut—less than an inch long—but some females can reach a whopping six feet long. They can also weigh up to 40,000 ...

To study these differences, scientists observe mating systems and describe how males and females come together. When choosing mates, animals evolve species-typical strategies for maximizing their ...

The ability to communicate effectively with other individuals plays a critical role in the lives of all animals ... experimentally blackened epaulets, males were subject to much higher rates ...