Female praying mantids are known for eating their mates, but what is the evolutionary advantage to this practice? This series of images is taken from film shot for Evolution: "Why Sex?" It depicts two ...

For millions of years, life on Earth has carried on and evolved thanks to finding mates and reproducing. Over those millions of years, species evolved into new species with new behaviors and processes ...

Some animals reproduce only once before dying. This life strategy, called semelparity, sees organisms channel all energy into reproduction. Mechanisms include stress hormone overload, sexual ...

At this time of year, some nurseries start selling the egg cases of Chinese mantis as a biological control for the garden. These alien-looking insects are praying mantis and are harmless to humans, ...