Why can’t we live forever? Some animals do, and I don’t mean some 200 year old whale–I’m talking immortal. There are actually species of animals that don’t age and could technically go on living forever–and why not? In a sense,......

Bacteria-eating viruses (bacteriophages) have been approved as meat additives to reduce the food safety risks associated with processed meat and poultry products. There is a concern, however, that viruses fed to chickens could spread toxin genes between bacteria, the subject......