February 1, 2010
Spiders have transparent blood.

False - Spiders have blue blood.  In human blood oxygen is bound to hemoglobin which contains iron, giving it the blood a red color.  In spiders, as well as other Arthropods and Molluscs, oxygen is bound to hemocyanin which contains copper, giving its blood a blue color.

The same interaction that causes oxygenated blood to color, also causes iron rust to appear reddish and the oxidized copper to appear green.

original claim: @OMGFacts; source: NEWTON Ask A Scientist

  1. omgfactcheck posted this