this post was submitted on 07 Jun 2025
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Science Memes

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[โ€“] TropicalDingdong@lemmy.world 13 points 1 month ago* (last edited 1 month ago) (1 children)

A seed is an integumented indehiscent megasporangium with one functional megaspore.

It doesn't have an ambiguous definition, and we know, without any uncertainty, that it evolved precisely once.

[โ€“] olafurp@lemmy.world 4 points 1 month ago

This, and your explanation below is fantastic. I had no idea that this was known and thought it plausible to have evolved many times like crabs.

Also, name checks out