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Why is horseshoe crab blood blue?

2026-01-19 16:03:54 · · #1
Why is horseshoe crab blood blue?
# Horseshoe crab # blood # three-spined horseshoe crab # a couple # horseshoe crab # horseshoe crab # Chinese horseshoe crab # king crab # June horseshoe crab # climbing onto the stove # couple fish
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