Seasoned commercial fisherman Donna Piraino and her husband were out fishing for blue-fin tuna when they noticed a pod of dolphins—then they saw a giant dorsal fin.

The Atlantic White Shark Conservancy confirmed it was a sighting of Old Thom, the only orca regularly seen in North Atlantic ...

Legendary killer whale ‘Old Thom’ spotted, shark researchers deploy first-ever camera tag in Cape Cod Bay: ‘There he is!

Unlike most other orcas, the massive male known as "Old Thom" prefers to swim alone. The post Well-known orca ‘Old Thom’ spotted again in Mass. waters appeared first on Boston.com.

If you do not know the story of Old Thom, you need to read about the only orca in North American waters - currently in Massachusetts.

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