Japanese scientists observed “muscle gain” in cultured human skeletal muscle cells infused with serum from hibernating black bears.

Researchers have demonstrated for the first time one way that a small molecule turns a single cell into something as large as a tree.

Researchers have demonstrated for the first time one way that a small molecule turns a single cell into something as large as a tree

Urbanization is causing many mammal species to grow bigger, possibly because of readily available food in places packed with people