A man who has been tracking sightings and attacks said there's "one incident every day, on average." In some cases, there's been more than one reported attack in a single day in June, so far. The map shows 10 attacks since June 1 and an additional 12 orca sightings in the same time period. For example, on June 3, there were four identified orca attacks and on June 8, there were two. If you spread the word about something that happens in an area, people will avoid that area," Alves told PBS.

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Persons: there's, —, Rui Alves, Alves, They've Organizations: Service, PBS Locations: Spain, Portugal, Gibraltar, Morocco