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submitted 11 months ago by [email protected] to c/[email protected]

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[–] [email protected] 9 points 11 months ago (2 children)

The narwhal's horn isn't a horn but a tooth.

[–] [email protected] 5 points 11 months ago

Evolution is fascinating, all these species reinvented the same tool using different parts of the anatomy.

[–] [email protected] 3 points 11 months ago

Some have 2, others have 0. Is a narwhal really a narwhal without its tusk(s)?