Articles on Educate me

Displaying 241 - 260 of 3462 articles

Each grey hair may be a sign that a cell has chosen to stop replicating rather than risk turning malignant. Pixel-Shot/ Shutterstock

How grey hair may be a sign of the body’s cancer defences

Those silver strands could be an outward sign of the body’s own intricate defences against cancer, a recent study in mice has shown.
A cutaneous horn is a cone-shaped growth on the skin formed from compacted, dead keratin. Jojo via Wikimedia Commons

Why some humans grow horns

Keratin is the tough protein that forms hair, nails and hooves. It’s also responsible for something far stranger: human horns.

Top contributors

More