Questions for “Urchin mobs can literally dis-arm a predator”
![photo of a red/pink sea star](https://www.snexplores.org/wp-content/uploads/2021/05/051321JB_urchin_feat.jpg)
A common sun star (Crossaster papposus), seen here, was found mangled in an aquarium. In a classic reversal of predator and prey, it had been attacked by dozens of starving sea urchins.
Jeff Clements