@natgeo
National GeographicJoro spiders are typically timid. So why are the girls fighting? New research shows that female joro spiders in both controlled and natural settings sometimes fight fiercely, tearing off limbs, and even cannibalizing each other. What does this mean for the invasive species' impact on the ecosystem? Learn more about this unusual behavior at the 🔗 in bio.
On the profile · Aug 3, 2025