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submitted 1 year ago by Track_Shovel@slrpnk.net to c/196

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I actually fact checked this and it's true.

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[-] miss_brainfart@lemmy.ml 96 points 1 year ago

And then you add the fact that sharks have barely evolved because they've been the perfect silent killer since the dawn of time.

Another fun fact:
Sharks don't make sound. They don't have any organ for the purpose of making sound. That is creepy as all hell.

[-] Hamartia@lemmy.world 55 points 1 year ago

That can't be true. I distinctly remember the shark in Jaws: The Revenge roaring. So get your facts straight.

[-] derpgon@programming.dev 33 points 1 year ago

And it always plays this ominous music when approaching their prey.

[-] jaybone@lemmy.world 17 points 1 year ago

Sharks played the cello one billion years before the Big Bang occurred.

[-] dditty@lemm.ee 3 points 1 year ago

Just to get in the zone when hunting

[-] Gladaed@feddit.de 29 points 1 year ago

Just because they didn't change their appearance doesnt mean they did not evolve. It is somewhat misleading to say that, but conveys a point I guess.

[-] DragonTypeWyvern@literature.cafe 18 points 1 year ago

More relevantly, the fossil records for sharks are mostly their teeth and jaws, because all their other bones are cartilage and rarely fossilize.

"Sharks haven't significantly evolved in appearance in 350 million years" is therefore based on reconstructions made under the assumption that the old sharks mostly looked like current sharks, which may or may not be true.

Though we can get a surprising amount of information that way, for example one change is that their jaws used be more at the end of their snout instead of more underslung like today, like so:

https://www.smithsonianmag.com/science-nature/new-technologies-reveal-strange-jaws-prehistoric-sharks-180977396

You'll note the Goblin Shark still has hints of that design.

[-] miss_brainfart@lemmy.ml 10 points 1 year ago

I made sure to say barely instead of not at all, but you're right, there was certainly some evolution happening

[-] AngryCommieKender@lemmy.world 3 points 1 year ago

Yeah, thankfully Megalodon isn't cruising around anymore. Though that might have delayed European expansion until they had metal clad vessels....

[-] zero_spelled_with_an_ecks@programming.dev 5 points 1 year ago

That sounds like a fun story, like a Pride and Prejudice and Zombies but instead it's Master and Commander and Megalodon.

[-] miss_brainfart@lemmy.ml 2 points 1 year ago

Can we even know for sure that Carcharocles Megalodon is in fact excinct?

[-] cows_are_underrated@feddit.de 6 points 1 year ago

You can't prove the non existence, but you can be very sure about some things. Megalodon lived near the surface, because it liked warm water(AFAIK), so it's likely that if it wouldn't be extinct there's a high chance that we would notice it, since Megalodon was kinda big.

[-] miss_brainfart@lemmy.ml 2 points 1 year ago

Yeah okay, seems plausible then. It's more fun to believe otherwise though, not gonna lie. After all, there's still so much we don't know about our oceans.

[-] ssfckdt@mastodon.cloud 1 points 1 year ago

I just saw one the other day at the 7-11

[-] agamemnonymous@sh.itjust.works 10 points 1 year ago

Do any fish?

[-] gratux 20 points 1 year ago

Yes, actually. Example: Triglidae

They are bottom-dwelling fish, living down to 200 m (660 ft), although they can be found in much shallower water. Most species are around 30 to 40 cm (12 to 16 in) in length. They have an unusually solid skull, and many species also possess armored plates on their bodies. Another distinctive feature is the presence of a "drumming muscle" that makes sounds by beating against the swim bladder