Like most vertebrates, humans only have one heart, which is usually located near the front and middle of the chest, slightly ...

The mystery of the cassowary's casque has been solved, but scientists have more questions that have yet to be answered.

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body. Water ...

Your body's circulatory system is a wondrous thing. It's made up of blood vessels that carry blood to and from your heart and also pumps blood to your lungs so you can breathe. It helps grow and ...