A new study on aging in the animal kingdom has highlighted how urgently Earth's oldest and wisest creatures must be protected, with knowledge and environmental stability lost due to human intervention ...

Old laboratory mice develop substantially fewer and less-aggressive lung tumors than younger animals in a new study led by Stanford University researchers. The discovery flies in the face of ...

Infusions of youthful blood led older mice to live 6 to 9 percent longer, a new study found. By Carl Zimmer A team of scientists has extended the lives of old mice by connecting their blood vessels to ...