Weddell seals live only in Antarctica and are the southernmost breeding mammal on Earth. The population of Weddell seals in Erebus Bay of Antarctica's Ross Sea face a major environmental event when a huge iceberg blocks access to their pupping colonies. In one of the longest running studies ever of a long-lived mammal population, scientists study the effects and outcome of this massive iceberg event on this population of Weddell moms and pups. Includes extensive topside and underwater footage of Weddell seal moms and pups, rare footage of a live Weddell birth, and interviews with scientists on location in Antarctica take the viewer to the ice in this 15 minute short documentary.