Even if you think you learned everything that you needed to know way back in biology class, everyone has knowledge gaps. And often you’re not even aware that they exist. There are tons of things we ...

Nestled in the nether regions of the nasal passage is a little-known organ that sees a lot of use in other animals but seems ...

Here’s what you’ll learn when you read this story: With more than 100,000 people in need of an organ transplant in the U.S. alone, scientists have turned toward perfecting human-animal chimeras as a ...

EDITOR’S NOTE: Watch “Dr. Sanjay Gupta Reports: Animal Pharm” on Sunday, May 18, at 8 p.m. ET/PT on CNN. There were more than 48,000 organ transplants in the United States last year. They’re ...

Miniature organs have a new lifeline. Mimicking the way early human embryos grow blood vessels, scientists nudged multiple types of mini organs to sprout their own vascular networks. Also called ...

Scientists have discovered a method of helping human stem cells thrive in an animal embryo—a key development in efforts to grow human organs in animals for medical transplants. A study by UT ...

For over a month, a pig's kidney that was transplanted into a human body has worked normally — a step surgeons hope can one day lead to using this type of operation to save patients' lives. The ...

A man in Massachusetts just became the first person to receive a pig kidney transplant. In this latest medical milestone, surgeons at Massachusetts General Hospital transplanted a pig kidney into a ...