• Question: Why do some animals have blue blood? and are there any other unnatural colours of blood?

    Asked by dobbythehouseelf to Kat, Andrew, Katie, Sadaf on 20 Jun 2013.
    • Photo: Andrew Swale

      Andrew Swale answered on 20 Jun 2013:

      This blue blood arises from the animals having haemocyanin instead of haemoglobin. This haemocyanin contains copper which is responsible for the blue colour

      Some animals can have green blood. And insects tend to have clear or very pale yellow/green blood

Comments