Question: do you believe in the theory of evolution?If yes how does it link to blood?

Andrew Swale answered on 19 Jun 2013:

I do believe in evolution

In reference to evolution and blood, we can see lots of differences between human and other animals; some have blood that contains copper, some have haemocyanin instead of haemoglobin, others don’t have blood but have a different fluid to transport nutrients etc

These differences have arisen due to differing environments/needs