Consider the Greenland Shark (2020)
61 points
5 days ago
| 8 comments
| lrb.co.uk
| HN
causal
1 hour ago
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A lot of deep sea creatures have very slow metabolisms. It is one of the many reasons sea dredging and mining should be held with such disdain: these are ecosystems which may take thousands of years to recover.

We don't even appreciate how long it takes a forest to recover, much less one with glass sponges that are thousands of years old.

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jackconsidine
3 hours ago
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When H Melville stuffed the middle of Moby Dick with a "cetology" -- BEFORE The Origin of Species, famously saying "a whale is a fish" -- he didn't forget the Greenland Shark. I think all the time about how many of those sharks swimming around in 1851 are still swimming around today.
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mikkupikku
1 hour ago
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Note that Melville was well aware of the reasons that "whales aren't fish", and went over those in detail, then said he was going to call them fish anyway.
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internet_points
2 hours ago
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Oh, the article is by Katherine Rundell. She has written some very nice children's books.

See also https://news.ycombinator.com/item?id=46511555

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frmersdog
3 hours ago
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There's a business lesson in the longest lived creatures being the ones that move slow, abide small insults, and make themselves generally unappetizing.
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fmbb
1 hour ago
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But are they rich?
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AnimalMuppet
43 minutes ago
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What is being rich, if you die young?
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joshuaheard
3 hours ago
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Jeremy Wade, host of the TV show "River Monsters", has an episode where he investigates the Loch Ness Monster and concludes it's likely a Greenland Shark that swam up an underground river from the North Atlantic to the lake. He likens the shark's horse-like face and the distribution of the low fins on the shark's back to descriptions of the monster. A solitary long-living fish could explain the occasional sightings, and the scientists' findings that there is not enough food in the lake for a breeding population of large carnivores.
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dragonwriter
2 hours ago
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As a sibling comment notes most sharks cannot live long in freshwater, and moreover this is soecifically true of Greenland sharks, though they do sometimes spend time in brackish river mouth environments, so, unless it developed the weird behavior of migrating quickly up the relevant underground river to make a quick appearance and then inmediately rushing back down the river to the ocean, that’s one answer we can be fairly certain is wrong.

There are a few sharks that can live in freshwater, but they tend to inhabit warmer oceans.f_

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RajT88
1 hour ago
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Totally wild factoid: Bull sharks have been caught in tributaries of the Mississippi River in Illinois. (Back before they built all the dams)
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dragonwriter
33 minutes ago
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Yeah, bull sharks are the most common and wide-ranging of the sharks that are adapted to survive in a wide range of salinity levels.
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cucumber3732842
21 minutes ago
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That's the kind of rare and highly luck based curiosity they ought to give you a plaque for. "From this shore in 1973 local angler..." Slap it on the same sign post as the flood high water markers they put up.
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joshuaheard
41 minutes ago
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That's too bad. I thought he was on to something.
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RajT88
2 hours ago
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He is likely wrong (most sharks cannot live long in fresh water). But given the show, he has to conclude it is a fish of some sort, and it is not going to be 10k arctic char in a dinosaur suit.
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ljlolel
2 hours ago
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Doubt a shark could survive in freshwater. They’re very tuned to salinity
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mikkupikku
1 hour ago
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Bull sharks can, but they're the famous exception to this. Sometimes they swim up a river and nip somebody.
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keiferski
1 hour ago
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I think the title is a reference to David Foster Wallace's awesome article, Consider the Lobster.

https://www.columbia.edu/~col8/lobsterarticle.pdf

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rsynnott
20 minutes ago
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David Foster Wallace has always irritated me, in that I've greatly enjoyed all of his essays that I've read, including this one, but I bounced off the novel hard.
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owlninja
1 hour ago
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Which is homage to Consider the Oyster I believe.

https://en.wikipedia.org/wiki/Consider_the_Oyster

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bananzamba
1 hour ago
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So that is where Silicon Valley got the "Consider the X" running gag from.

https://m.youtube.com/watch?v=KuVEbBmu1EM

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_joel
37 minutes ago
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Hello Ordinary Sausage
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ikeashark
1 hour ago
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Consider the elephant when?
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