>> maria leone was determined to understand their behavior. she decided to camp out on this coastline three months a year when the orcas hunt the most. for 20 years she's observed maga and their families and can identify individuals by their unique markings. >> you take photos of their fins, of their saddle patches. the idea is through observation of this population and of their behavior over long periods of time. >> maria leone realized their hunting technique was not instinctive but learned. >> they start teaching the calves when they're really tiny. they're start to bring them to sure slowly and safely until eventually they can do it on