The relationships among people and animals are an integral part of our society, economy and culture. Animals provide us with food, clothing, recreation and companionship. Explore the biology of ...

July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

Amyotrophic Lateral Sclerosis, or ALS, received widespread awareness in the summer of 2014 thanks to an Ice Bucket Challenge. Millions of people participated in the challenge, drenching themselves in ...