This is turning into a “of course” to “no way” discussion on Quora. I am in the “no” school of thought.
Yes, horses have marrow in their bones.
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Of course they do; how else would they grow new blood cells?
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You’re kidding, right?
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All mammals have bone marrow. It’s (in simple terms) what produces new blood cells.
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Of course they do.
…why would you think they wouldn’t? 
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Gaaaaaaaahhhhhh. Obviously I was misinformed by an older sister who loved telling me things that I would believe and then would make me look really stupid when I repeated the misinformation as if it was gospel.
One might think that, after 65 years, I might have learned my lesson. I am so damn gullible.
Please forgive me. I will never believe my sister again.
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Are you serious?!?
How do you think they make new blood cells??
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On the other side of the coin, I recall having a fascinating discussion with an x-ray tech at our local hospital who was unaware that animals have bones just like people, and that veterinarians can do/read imaging…she wanted to know if I was sure that animals have bones, because she’d never thought that they do…
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Wow. How is that possible. Even if you’ve never had an animal that’s needed a radiograph the vet, don’t you cook? I wonder what she thought a t bone was. Or chicken wings.
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Bone marrow is also part of the immune system.
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Maybe she’s always been vegan?
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Because, you know, animals don’t need a skeleton to hang those tendons, ligaments and muscles on.
Don’t rad techs have to take at least BASIC biology ? :eek:
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Well, this is a scary discussion on so many levels…
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That can’t be a true story…were you on pain killers? I’m sorry…no one can be that stupid. There must have been a subtle difference in this story - e.g. that she didn’t know animals had as many bones as a human or something…or some other fact, not that they didn’t have bones at all.
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No worries. People here repeat things ad nauseum until they become “fact.”
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And never took a biology course? :lol: :lol:
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Many school rooms have a human skeleton standing in a corner.
Maybe we need to add skeleton models of gerbils/dogs/cats/horses/dinosaurs?
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I admit it, I am very curious to what story your sister told you to explain her ‘fact’. Why did horses not need bone marrow?
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