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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 swores on Friday July 04, 2025 @09:44AM (#44464503)
Killer Whales, aka Orcas, actually are dolphins!

And they got their name as a mistranslation into English - if I remember correctly they were originally named in Spanish as "killers of whales" or "whale killers", because they do that

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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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Re:Killer whales groom each other–with pieces of kelp by thaumasiotes on Friday July 04, 2025 @05:37PM (#44468054)
> if I remember correctly they were originally named in Spanish as "killers of whales" or "whale killers", because they do that

Wiktionary supports that etymology, and it is generally a high-quality source for etymology, but it's troubling that this one isn't cited.

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