Q: Among the dogs I've had over the years, my small dogs lived longer than my large dogs. Is this generally true? If so, why?

Tierra Walker, a 37-year-old mother, was told by doctors at a San Antonio area hospital that there was no emergency before preeclampsia killed her.

Some dogs have hearts that are as tender as their furry exteriors. These breeds, often known for their loving and sensitive ...

A couple say Polly the golden retriever was so "in tune" with her owner, she helped save his life when his heart stopped in the middle of the night.

In research, induced pluripotent stem (iPS) cells are derived from skin, urine, or blood samples and developed into other cells, like heart tissue, that researchers want to study. Because of the ...

Ricky, the puppy with a life-threatening heart condition, has found a forever home after undergoing successful surgery.