Mycobacterium avium complex (MAC) is group of organisms causing a bacterial infection that leads to lung disease. MAC is noncontagious and made up of nontuberculous mycobacteria (NTM), which are ...

Photo: Atta Kenare/AFP/Getty Images Amid U.S. warnings against a counterattack on Israel, Iran is sending a defiant diplomatic message: It is planning a complex response involving even more ...

Keratin is a fibrous protein naturally found in our hair, skin, and nails, giving them structure and resilience. But with age or exposure to environmental pressures, our body produces less keratin ...

"I'm not against the idea that there were higher nutrients 2.1 billion years ago but I'm not convinced that this could lead to diversification to form complex life," he said, suggesting more ...

Keratin is a helpful resource in Ark: Survival Ascended. Some creatures drop this resource, but harvesting the corpses using tools or dinosaurs is the best way to obtain it. However, this resource ...