• Question: why is our blood blue?

    Asked by cw to Claire, Liad, Ruth, Ryan, Mako on 15 Jun 2015.
    • Photo: Ruth Elderfield

      Ruth Elderfield answered on 15 Jun 2015:

      Our blood is usually red not blue! Red due to the haemoglobin in the red blood cells. Some sea creatures (crabs and lobsters) can have blue blood.

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