Blood chemistry reveals why some animals bleed blue, green or purple
Whether it's gushing from a bumped nose or pooling atop a pricked finger, our blood is some hue of red. But red-bloodedness isn't universal in the animal kingdom. In some creatures, the vital fluid is purple; in others it's yellow, green or even white.
Image: Phys.org
Whether it's gushing from a bumped nose or pooling atop a pricked finger, our blood is some hue of red. But red-bloodedness isn't universal in the animal kingdom. In some creatures, the vital fluid is purple; in others it's yellow, green or even white.
Originally published at Phys.org
