A collective defense: how hundreds of crabs fended off a predator

Nature · Published 3 October 2026 Swipe more like this →

In short: Watch a rare underwater standoff where a swarm of crabs united to protect a spy robot from a hungry stingray. This footage captures a unique moment of collective behavior in the ocean's depths.

The video captures a dramatic encounter where a spy robot became the target of a stingray. Instead of being consumed, the robot was shielded by an army of hundreds of crabs.

This footage illustrates the complex social dynamics and defensive behaviors of marine life, showcasing how individual organisms can act in unison to repel a predator.

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