One of the most fascinating aspects of human life is ... scientists observe mating systems and describe how males and females come together. When choosing mates, animals evolve species-typical ...

All animals need to ... creatures have male and female versions though. They can only make a new copy if they mix together males and females. That's what we call mating. Females get pregnant ...

While humans have their honeymoon traditions, the red-sided garter snakes of Narcisse partake in their own version, turning ...