this post was submitted on 11 Jun 2025
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Science Memes

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top 11 comments
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[–] LostXOR@fedia.io 29 points 1 day ago

Why would you want to? Just take out the tooth and let it grow back.

[–] MTK@lemmy.world 8 points 1 day ago (1 children)

Why wouldn't they be able to?

[–] Crankenstein@lemmy.world 17 points 1 day ago (2 children)

You know how human teeth have those prong bits that anchor into the gums, the "root"? Inside those are the nerve canals: spaces filled with a pulp that nerve endings run through.

Shark teeth don't have these canals in their root. Their teeth aren't anchored into the gums and don't connect to any nerve endings.

[–] marduk@lemmy.sdf.org 20 points 1 day ago (1 children)

Does that mean they can bite into the ice cream without their teeth hurting?!

[–] Crankenstein@lemmy.world 14 points 1 day ago* (last edited 1 day ago) (1 children)

Uhhh... Actually, after giving it some thought, yea probably. Might lose a few teeth in the process though.

[–] blackbrook@mander.xyz 5 points 16 hours ago (1 children)

But do they get head-freeze if they eat it too fast?

[–] Crankenstein@lemmy.world 12 points 15 hours ago (2 children)

This was fun researching and theorizing. Thanks for asking.

We experience brain freezes when a sharp temperature drop comes into contact with the roof of the mouth and back of the throat, causing the blood vessels to constrict, which in turn causes the arteries in the brain to expand. It isn't exactly clear where the "pain" comes from though; it is theorized that the arterial wall's expansion triggers the trigeminal nerve (relays sensory info between face and brain) and is registered as a pain sensation.

Shark anatomy is entirely different in structure, such as they don't have the same complex nervous system. Also, considering they are ectotherms, their body responds in completely different ways to changes in temperature than we do.

So considering what we know about shark physiology and the current theory on the mechanics behind "brain freezes", probably not.

[–] resting_parrot@sh.itjust.works 2 points 13 hours ago

TIL sharks are probably immune to brain freezes.

[–] SkaveRat@discuss.tchncs.de 1 points 12 hours ago

!theydidtheresearch

[–] MTK@lemmy.world 1 points 1 day ago
[–] BakerBagel@midwest.social 6 points 1 day ago* (last edited 1 day ago)

And here i was wondering what the labial tastes like