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Blueberry milkshakes (i.postimg.cc)
submitted 2 years ago by [email protected] to c/[email protected]
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[-] [email protected] 228 points 2 years ago

For those who don't know, the blue liquid is their blood

[-] [email protected] 87 points 2 years ago

Obviously didn't read the meme. It's a blueberry milkshake. Everyone knows blood isn't that color.

[-] [email protected] 74 points 2 years ago

Why are they draining it in this way? Poor things.

[-] [email protected] 163 points 2 years ago

It’s catch and release so they let them go afterwards where they found them. Horseshoe crab blood is an essential biomedical tool that’s saved countless lives.

[-] [email protected] 64 points 2 years ago

What are some example uses for the blood? I’m fascinated.

Thanks for the reply too.

[-] [email protected] 98 points 2 years ago

It’s an anticoagulant and can detect the smallest traces of endotoxins in medicine. I’m sure I’m missing some details but there are some great medical journals that detail the process and help explain why it’s $60,000 a gallon.

[-] [email protected] 47 points 2 years ago

It is not an anticoagulant, quite the opposite actually. The blood (limulus amoebocyte lysate) will coagulate at the slightest hint of gram-negative bacteria and their endotoxins.

It's most likely a defense mechanism against bacterial infections.

It's widely used in medicine to check for bacterial contamination of injectable pharmaceuticals.

[-] [email protected] 7 points 2 years ago

Discoveries like this always makes me wonder, who had the idea to try it and why

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[-] [email protected] 7 points 2 years ago

Woah. Are horseshoe crabs like other crustaceans in that they eat pretty much anything including/mostly detritus?

If thats the case, than how would it be beneficial to have blood that coagulates so easily?

Wouldn't every meal lead to a crab version of a stroke?

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[-] [email protected] 36 points 2 years ago

Where can someone find these horseshoe crabs?

And are they able to be bred in captivity?

Pls respond fast, I’m already driving to home depot to buy the largest above ground pool they have.

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[-] [email protected] 23 points 2 years ago

The blood contains a coagulent which clots in the presence of bacterial toxins. It is extracted and used to ensure that medical equipent and stuff such as vaccines are sterile and safe.

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[-] [email protected] 50 points 2 years ago* (last edited 2 years ago)

Here's a description of the bleeding process:

https://www.horseshoecrab.org/med/bestpractices.html

It's specifically non-fatal:

Bleeding horseshoe crabs to death is not an acceptable practice in the U.S.

The volume of blood taken is actually quite small, as most of the material in the collection jars is anticoagulant.

It may look uncomfortable to us humans, but keep in mind that horseshoe crabs are not human. What's normal for the spider is chaos for the fly. Granted, it would be kinda weird to be hoisted from your home by a giant ape and forced into a blood drive. It's done as gently as possible though.

[-] [email protected] 51 points 2 years ago

Unfortunately the practice often results in death anyway. 30% die in the process.

It also has unforseen consequences in the food chain, so by all means we should look for alternatives.

Thankfully alternatives already exist .

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[-] [email protected] 30 points 2 years ago* (last edited 2 years ago)

Highest chance of survival/low stress

Edit: many do die still. I don’t want to say it’s safe, just safer

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[-] [email protected] 8 points 2 years ago* (last edited 2 years ago)

So this is basically like a blood farm from vampires? Shit, still surprises me what an evil species we really are.

[-] [email protected] 7 points 2 years ago

I kinda agree with you but when you think about it it's not that bad. They are released afterwards and we can use that blood to save countless people, like you and me.

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[-] [email protected] 151 points 2 years ago

People who know know that the crabs survive and are released back into the wild after their "donation"

[-] [email protected] 65 points 2 years ago

Real talk I'm fine with hurting crabs for our own means. Straight up.

[-] [email protected] 38 points 2 years ago

Whoa! That's some Human Supremacist talk there.

[-] [email protected] 24 points 2 years ago

Hell yeah. Whole point is to get the species off the rock, then out of the meat suit

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[-] [email protected] 11 points 2 years ago

Or mammal supremacist. Or vertebrate supremacist. There are options

[-] [email protected] 20 points 2 years ago

On god, no cap frfr str8 bussin.

[-] [email protected] 13 points 2 years ago

Real talk I’m fine with hurting other living beings that aren’t me for my own means. Straight up.

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[-] [email protected] 11 points 2 years ago* (last edited 2 years ago)

They're chelicerates though, not crustaceans. But then again, apparently everything evolves into crabs anyway

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[-] [email protected] 57 points 2 years ago

If horseshoe crabs were to become less economically important, is that a good thing for horseshoe crabs? They ain't exactly Pandas, so will little Sally and Bobby care if horseshoe crabs become endangered? They're already in a precarious situation...

[-] [email protected] 42 points 2 years ago

Horseshoe crabs have been existing for almost half a billion years, I would genuinely be sad if we endanger them to critical levels

[-] [email protected] 28 points 2 years ago

Climate Change is warming the waters they spawn their eggs in. They're becoming endangered from that. Not because of a few we harvest blood from.

[-] [email protected] 13 points 2 years ago

I didn't say that harvesting blood is the one thing endangering them, did I. Just that it would be a shame to see them go

[-] [email protected] 8 points 2 years ago

That's the topic of this thread and even if you didn't say blood harvesting was endangering them, most people are already going to be thinking that's what you're implying.

[-] [email protected] 8 points 2 years ago

That's a fair assumption to make, true.
Idk, I'm just someone who says things exactly the way I think 'em. I don't intend for a deeper meaning to be interpreted, but people are going to do that, because that's just how people are. So again, fair.

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[-] [email protected] 33 points 2 years ago

I think living to have your fluids harvested in factory farms is a worse outcome than going extinct.

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[-] [email protected] 10 points 2 years ago

If you are any part of nature and also economically important, you get barbarically exploited until you go extinct. If you are not, you will be bulldozed to make room for the former. Capitalism is the best system of morality humans have ever, and will ever, come up with, and I truly cherish the utopia it has brought upon civilization.

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[-] [email protected] 53 points 2 years ago

Trivia of the day, horseshoe crab blood is blue because it is copper based instead of iron based like our blood

[-] [email protected] 22 points 2 years ago

They're actually being fed the blue milk from Star Wars 8

[-] [email protected] 9 points 2 years ago

That was green milk. Blue milk is from Episode IV.

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[-] [email protected] 14 points 2 years ago* (last edited 2 years ago)

It’s a simple, nearly instantaneous test that goes by the name of the LAL, or Limulus amebocyte lysate, test (after the species name of the crab, Limulus polyphemus). The LAL test replaced the rather horrifying prospect of possibly contaminated substances being tested on “large colonies of rabbits.” Pharma companies didn’t like the rabbit process, either, because it was slow and expensive.

From https://www.theatlantic.com/technology/archive/2014/02/the-blood-harvest/284078/ (emphasis mine).

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[-] [email protected] 11 points 2 years ago

This is the kind of shit you see right at the start of alien invasion type sci fi flicks.

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this post was submitted on 08 Nov 2023
576 points (93.6% liked)

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