9 Animals That Eat Their Partner After Mating

By Rajni Pandey | July 29, 2024

Praying Mantises

Praying mantises are perhaps the most famous for sexual cannibalism. The female often decapitates and consumes the male during or after copulation. 

Image Credit: Canva

Black Widow Spiders

Black widow spiders are notorious for their deadly mating habits. The female sometimes eats the male after mating, although this behavior varies among individuals. 

Image Credit: Canva

Redback Spiders

Similar to black widows, redback spider females often consume their mates. During mating, the male even assists the female by positioning himself to be eaten, which might increase the chances of successful sperm transfer.

Image Credit: Canva

Anglerfish

In the deep sea, male anglerfish are much smaller than females and will attach themselves to the female with their sharp teeth. Over time, the male becomes a parasitic appendage, eventually being absorbed into the female's body to provide sperm when needed.

Image Credit: Canva

Orb-Weaving Spiders

Some orb-weaving spider species exhibit sexual cannibalism, where the female eats the male after mating. This behavior is believed to ensure that only the strongest males mate and provide nutrients to the female.

Image Credit: Canva

Scorpions

Certain scorpion species engage in sexual cannibalism. The female scorpion may devour the male after mating to gain sustenance for her developing embryos.

Image Credit: Canva

Grasshoppers

In some grasshopper species, females may eat the male after or even during mating. This behavior is thought to be driven by the female's need for additional nutrients to support reproduction.

Image Credit: Canva

Wolf Spiders

Wolf spiders are another group where sexual cannibalism can occur. The female sometimes consumes the male after mating, which could provide her with energy to produce and care for her offspring.

Image Credit: Canva

Jumping Spiders

Jumping spiders are known for their complex courtship dances, but in some species, the female may eat the male after mating. This can serve as a nutritional boost for the female and increase the survival rate of her young.

Image Credit: Canva