A population of Antarctic killer whales known as B1 uses an extraordinary strategy to hunt seals resting on ice. Working as a team, the whales create a powerful breaking wave to wash their target into the water. However, when the piece of ice is too big to wave wash, they create a subsurface shock wave instead, which shatters the ice into small pieces. After this pod had successfully pushed this Weddell seal into the water, a pair of humpback whales arrived to disrupt the hunt. No one knows exac