From plants and bacteria to animals and humans, our world is filled with many living things. In fact, there are approximately 8.7 million species of plants and animals in existence, and only 1.2 ...

Understanding the human cell is vital to progress in the life sciences and to human health. Cells are the smallest, most basic unit of life responsible for all of life’s processes. A typical human ...

Cells, the basic unit of life, get tired. They divide only a certain number of times before they encounter stress, stop and sometimes just hang around in tissues. Sometimes these aging cells do ...