Organs

Preserved brains tend to look like normal brains, but they're often one-fifth of the typical size.

Archaeologists Keep Finding Preserved Human Brains. But How Do the Organs Remain Intact?

Scientists have unearthed more than 4,400 human brains—some more than 12,000 years old—making them less rare than thought, a new study finds

Volunteers from the John Cage Organ Foundation conducting an earlier chord change in October 2013

This Organ Is Playing a 639-Year-Long Song. It Just Changed Chords for the First Time in Two Years

The instrument has been playing composer John Cage's "ASLSP" since 2001—and it's scheduled to conclude in 2640

In the new study, long-tailed macaques, or crab-eating macaques, received kidney tranplants from genetically edited pigs. One of the monkeys survived for just over two years after the transplant.

Monkeys With Transplanted Pig Kidneys Survive for Up to Two Years

The study brings scientists one step closer to conducting trials in human patients, researchers say

Scientists inserted human stem cells in pig embryos that couldn't develop kidneys, then let these embryos gestate in sows for several weeks. The experiments resulted in kidneys partly made of human-derived cells.

Scientists Grow Part-Human Kidneys in Pig Embryos for Nearly a Month

The new work is a "big step forward" in finding new ways to generate viable organs for human transplants, but it comes with some ethical considerations

Glass frog photographed during sleep and while active, showing the differences in red blood cells within the circulatory system. 

These Frogs Turn Nearly Invisible While Sleeping

The transparent glass frog can hide 89 percent of its blood in its liver, new research shows

Researchers found a two-part organ called the hemiclitoris after dissecting a death adder snake.

Scientists Discover That Snakes Have Clitorises

The finding highlights disparities in research on male and female animals

As of October 19, 10,991 people are waiting for a liver in the United States. Further research into long-lasting livers could expand the transplant pool.

Transplanted Livers Can Survive Past 100

These organs that live for more than a century could raise the age of potential donors, perhaps shortening waits for the life-saving procedure

The Gogo fish fossil 

World's Oldest Vertebrate Fossil Heart Found in Australia

The 380-million-year-old heart came from a prehistoric fish that is our earliest jawed ancestor

Bones communicate in varying ways with other parts of the body.

How Bones Communicate With the Rest of the Body

A new vision of the skeleton as a dynamic organ that sends and receives messages suggests potential therapies for osteoporosis and other problems

The device includes a hemofilter made up of silicon semiconductor membranes that remove waste products from blood and a bioreactor containing renal tubule cells that regulate water volume, electrolyte balance and other metabolic functions.

This Bioartificial Organ Could One Day Save 'Millions' Living With Kidney Disorders

Scientists won a $650,000 prize for the successful demonstration of the prototype

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