Getting enough oxygen in the water can be hard work. While fish and many other aquatic animals take air directly from the water through gills, other animals find ingenious ways to drag air bubbles ...

Almost all organisms require oxygen. Oxidation of carbohydrates, proteins and fats releases chemical energy in a step-by-step process that occurs in cells — energy for all the activities of life.

A new study has found the first evidence of sophisticated breathing organs in 450-million-year-old sea creatures. Contrary to previous thought, trilobites were leg breathers, with structures ...

Scientists at the Wake Forest Institute for Regenerative Medicine have created the world's most sophisticated lab model of the human body, developing a full system of miniaturized organs known as ...

When 4,000 beagles destined for animal testing were recently rescued from a breeding facility in Virginia, it was a reminder of the sheer scale of animals used in the pharmaceutical industry and other ...

Scientists are researching ways in which pigs and other animals could be genetically modified to allow them to be used for the growth of human organs. (c.morgenstern via Getty Images) Almost ...

The coronavirus pandemic has highlighted the importance of mechanical ventilators as life-saving tools. But what happens when those tools are not available, or the supply runs out? Japanese scientists ...

The quest to grow functional human organs in animal hosts has made significant strides, marking a revolutionary leap in regenerative medicine and transplantation. This groundbreaking research offers ...