In the 1959 classic, Attack of the Giant Leeches, our plucky heroes must escape the giant annelids the size of humans. Luckily for us, giant leeches can likely not exist due to?

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The hydrostatic skeleton would not be strong enough to support their size on land

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The spiracles would not be large enough to allow enough oxygen in

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The weight of their exoskeleton would crush their body

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Their 3-chambered heart would not be efficient enough to support their large size

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In the 1959 classic, Attack of the Giant Leeches, our plucky heroes must escape...

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