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A comment on Killer whales groom each other–with pieces of kelp. Parent comment

Re:Killer whales groom each other–with pieces of kelp by ceph_ on Friday July 04, 2025 @03:34PM (#44467245)
All dolphins are whales. Not all whales are dolphins. It's a square / rectangle situation.

Orcas are indeed dolphins, and also whales.

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