Are blood stem cells hiding inside the bone to avoid sun damage?
In dyeing poison frog, HSC production moves from the kidney to the bone marrow during metamorphosis to avoid damage from sunlight that’s harsher on the surface of the earth than in the water, new study suggests. (Credit: Wikimedia Commons) Blood stem cells may have evolved to inhabit bone tissue to avoid DNA damage from UV rays, a Harvard study suggests. Also known as haematopoietic stem cells (HSCs), these cells are tasked with making blood —…