Few people know the orcas of Puget Sound as well as Ken Balcomb.
A researcher with the Center for Whale Research on Washington state's San Juan Island, Balcomb has been studying the whales for more than 30 years.
It takes Balcomb only a few seconds of listening to the squeaks and whistles of underwater whale recordings to recognize the different pods of orcas.
In one recording, Balcomb identifies the group known as the L Pod — the family many people in the area are talking about right now.