A giraffe's long legs aren't just for height, they save energy by reducing how hard the heart works to pump blood upward ...

There are many purposes that spots and stripes serve in nature, but how they form has been more of a mystery to scientists.

Cells convert mechanical forces into signals that influence physiological processes, such as exercise strengthening bones. A ...

Scientists have found that they may be able to use the retina's blood vessels to help predict a person's heart disease risk ...

Cardiopulmonary resuscitation (CPR) performed within five minutes of a child's heart stopping nearly doubled their chances of ...