Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.

The human body is a remarkably resilient thing, as many case studies of people surviving without organs tell us ...

Life is the most precious gift, if it should ever fall within our power to give it. An inspiring but heart-rending example was our story about fatal traffic accident victim Carman Ho, and the family ...

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Five years ago, Sergio Cobos was just trying to stay ...

A food web is a detailed interconnecting diagram that shows the overall food relationships between organisms in a particular environment. The simplest explanation is that food webs are "who eats whom" ...

Between blood tests and heart rate monitoring, it’s a question Dr. Martha Taylor makes sure to ask her patients during their checkup: Are you registered as an organ donor? The Kitchener, Ont., family ...