Trivia.com
Horseshoe crabs are older than dinosaurs.
Trivia.com
Horseshoe crabs are more closely related to spiders than crabs.
Trivia.com
Horseshoe crabs have blue blood.
Trivia.com
Horseshoe crabs have survived multiple mass extinctions.
Trivia.com
Horseshoe crab blood helps test many medical products for contamination.
See also
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