this post was submitted on 28 Nov 2025
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Science Memes

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[–] Lyrl@lemmy.dbzer0.com 3 points 22 hours ago

Obligate ram breathing is kind of mind-blowing. They have to swim to flow water through their gills because their gills have no muscles to flap like most fish have.

Only a few sharks are obligate ram breathers, though. Many species are able to take breaks from swimming.