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Episode 134 – Sanguivores (Blood-Eaters)

The Common Descent Podcast

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Insect Hemo Lymph Isn't Red, It's Not Red.

We have roughly two cats in weitworth of blood in our bodies. That that's actually a smaller % than i think i would have guessed if you had just put a gun into my head. Mammals, birds, reptiles, amphibians, fish, invertebrates can have blood like things. Insect hemolymph doesn't carry gases in it because they just get gas directly from the outside world. Yet they're not pump in air like we are, so there's no reason to have to transport the air you pump. You're just soaking it up like a sponge right in the atmosphere.

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