Dr. James Faber is professor of cell biology and physiology at the UNC School of Medicine. Here he explains how principles of chemistry and physiology combine to create the color scheme of blood.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Blue blood may look alien, but it’s one of evolution’s most ...

Octopuses are perhaps the most unusual creatures to have ever inhabited the ocean. Their soft body, eight arms, and high level of intelligence make them a fascinating subject of interest to many ...