3D organ printing is a new technology that has the potential to revolutionize the field of transplantation. By using 3D printers to create custom-made organs, doctors could one day provide patients with the organs they need without having to rely on donors.

Arthropleura had a long, segmented body covered in hard plates. It had powerful legs that allowed it to move quickly, and it had sharp claws that it used to defend itself.

Some flowers have evolved to camouflage themselves in order to avoid being eaten by predators. This can be done in a variety of ways, including by mimicking the colors and patterns of their surroundings, or by producing chemicals that make them taste bad.

Walking fish are a group of fish that have evolved the ability to walk on land. They do this by using their pectoral fins as legs, and they can even climb trees.

Whether you're a first-time traveler or a seasoned pro, these tips will help you make the most of your next trip abroad.

Learn about the pros and cons of sleeping with the lights on, and find out what you can do to improve your sleep quality even if you can't sleep in complete darkness.

Humpback whales are some of the most acrobatic creatures in the ocean. They breach, lob tails, and slap their fins, all in an effort to communicate, play, and even attract mates.

Learn about how new technologies are changing the way we farm, and how these changes are impacting our food supply.

Angel Falls is a waterfall in Venezuela that is the world's tallest uninterrupted waterfall. It plunges over 979 meters (3,212 feet) from the Auyán-tepui mountain into the Churún River.

16 Psyche is an asteroid that is thought to be made of solid metal. It is estimated to be worth more than the entire Earth.