Crabeater seals. Each member of this pod needs to eat a seal a day. So the pressure is on to feed. They’re led by a matriarch who knows exactly what to do. With the ice floe broken in two, the seals have become more vulnerable. The matriarch now pushes the ice floe into open water to give their next wave maximum impact. This requires teamwork and precision. She makes the following calculations. This seal has only one way of escaping death.