Orb web spiders found to be better guards after sex

Previously, Daiqin Li and colleagues at the National University of Singapore found that the male orb web spider loses its sex organ, called a palp, due to it breaking off during sex because ...

Male spider castrates himself and gets more stamina

ScienceShot: Eunuch Spiders Are Better Fighters

Arachnids become more efficient by jettisoning their sperm-carrying organs

Eunuch spiders fight off competition

EUNUCH SPIDERS: Male spiders castrate themselves so their manhood doesn't weigh them down when they're fighting off competitors, say researchers.

Nephilengys malabarensis spider loses its penis during sex to make it more fierce in battle against love rivals

The male nephilengys malabarensis spider loses its penis when it has sex with a female, which is in itself a clever evolutionary trick, as it plugs up the lady spider's genitals and stops other ...

Male Spiders Castrate Themselves to Fight Better

Castrated males are better fighters because they are not weighed down by their manhood.

Male Spider Ditches Penis, Gains Fighting Power

After ditching their genitals, male spiders get an extra dose of endurance due to their decreased body weight.