Study Explains Seal Discernment A study in the journal Nature explores the way seals distinguish between dangerous killer whales and those that are benign. NPR's Steve Inskeep talks with Volker Deecke of the Vancouver Aquarium Marine Science Center.

Study Explains Seal Discernment

Study Explains Seal Discernment

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A study in the journal Nature explores the way seals distinguish between dangerous killer whales and those that are benign. NPR's Steve Inskeep talks with Volker Deecke of the Vancouver Aquarium Marine Science Center.