They don't call them killer whales for nothing. In this gorgeous footage from filmmaker Edwar Herreño, a pod of six orcas make a meal out of a tiger shark in the waters off Costa Rica.
Herreño isn't just a photographer and filmmaker, he's also a marine biologist. His work has appeared on CNN, Animal Planet, Discovery Channel, National Geographic Channel, and BBC. He's also a yacht captain and SCUBA instructor.
For those interested, he shoots with a Nikon D300 in a Sea & Sea housing, using Sea & Sea 250 strobes and a Sony FX1 in a Gates Housing. You know the drill: expand to full screen, turn on your speakers, etc. Check out more of his work on his website.