I know this one is a little off subject, but maybe not…
I love science. I’m a vampire so of course I love science as much as I love art. It’s a given.
I found this great story on the NPR (National Public Radio) web site about horseshoe crabs. They have BLUE blood. Check it out.
“How do horseshoe crabs come to have blue blood? The phrase traditionally means blood which flows in the veins of old and aristocratic families, and horseshoe crabs are certainly old (they lived with dinosaurs), and, in their way, aristocrats. But they don’t have veins. Their blood kind of sloshes around in their bodies carrying oxygen to various organs, as our blood does.
Our blood is red because we use hemoglobin to move oxygen around. Hemoglobin has iron in it, which gives off a reddish hue. (Think of rust.) Horseshoe crabs use a copper-based molecule called hemocyanin to distribute oxygen. In nature, copper turns things blue or blue-green. So that’s why their blood is blue; it’s copper-based.”
Enjoy! Happy Friday and may all of your days include discovery and wonder!
~ Juliette
Vampire Maman 