Stay close, please, children. We are here at the riverbank to look at the way different animal circulation systems move blood around their bodies. This furry creature is a water vole. Like all mammals ...

The metabolic activity of any tissue is limited by its blood supply; the more active any organ, the more blood it needs and the more extensive its vascularization. The changes in metabolic activity ...

Well, the blood has to be kept moving around all the time because it's the body's delivery system. Every possible part of the body has to be supplied with oxygen and food and water, and the veins and ...

A process of surgically joining the circulatory systems of a young and old mouse slows the aging process at the cellular level and lengthens the lifespan of the older animal by up to 10%. A process of ...

RIKEN researchers have imitated the formation of organs in the lab by "hacking" certain signaling pathways that guide the development of connective tissues in the embryo, which support the formation ...

The blood flows around the body in blood vessels (tubes) called arteries, veins and capillaries. This is the circulatory system. The heart pumps the blood through the circulatory system. Arteries ...