Army of Crabs Protect Spy Robot From Stingray | Spy In The Ocean | BBC Earth

Witness an incredible moment in the ocean depths as an army of crabs unites to protect a spy robot from a menacing stingray! In this fascinating clip from BBC Earth's "Spy In The Ocean" series, our high-tech spy cameras give us an unprecedented look at the secret lives of marine creatures. Watch as the crabs showcase their remarkable defensive strategies against a common predator.