That is a picture of horseshoe crabs being drained of 30% of their blood (which the article says is 'not usually fatal'). Sherlock read this to me and then asked me a number of questions I couldn't answer, including 'Why does our blood use iron and theirs uses copper and how can I make mine use copper so that it's blue?' If you would also like to turn your blood blue, I'm sorry, I can't help you.
The barber (this was while we were both getting our hair cut) wanted to know what would make Spock's blood green. I couldn't help him either. Maybe that's why I've ended up with a haircut that makes me look like a deranged squirrel. Sherlock speculated nickle, or a different sort of iron. (His hair looks fine.)
Greg laughed when he came home and then kissed me and then laughed some more and asked if I wanted curry, so it must be bad. Still, curry.