Rare footage has captured an enormous megapod of dolphins joining together to hunt flying fish in the Pacific Ocean off Costa Rica. The video shows one of the biggest groups of spinner dolphins ever filmed, with thousands banding together in a gathering that extended deep underwater.
The event was captured as part of PBS's "Spy in the Ocean, a Nature Miniseries," in which the team uses spy cameras attached to animatronic animals to infiltrate wild groups. Off Costa Rica, a "spy dolphin" was deployed among a group of spinner dolphins (Stenella longirostris) — a species known for its acrobatic, twisting leaps out of the water.
