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Blue Sharks Feast on Basking Shark: A Rare Sighting

9/7/2025

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Summary

Story summary

Blue sharks were seen feeding on a basking shark's liver off the North Shore, reported by 7 Seas Whale Watch.
This event took place Wednesday, approximately 33 miles north of Gloucester.
Whale watchers found the sighting extraordinary, reminiscent of a National Geographic scene.
Basking sharks, the second largest fish, typically measure 20 to 25 feet long.
An injured seal with shark bite wounds was discovered on Duxbury beach, too injured for treatment.
The Atlantic White Shark Conservancy cautioned that ocean sunfish and seals can be mistaken for white sharks.
Increased shark activity is common during this time of year.

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Story summary

Blue sharks were seen feeding on a basking shark's liver off the North Shore, reported by 7 Seas Whale Watch.
This event took place Wednesday, approximately 33 miles north of Gloucester.
Whale watchers found the sighting extraordinary, reminiscent of a National Geographic scene.
Basking sharks, the second largest fish, typically measure 20 to 25 feet long.
An injured seal with shark bite wounds was discovered on Duxbury beach, too injured for treatment.
The Atlantic White Shark Conservancy cautioned that ocean sunfish and seals can be mistaken for white sharks.
Increased shark activity is common during this time of year.