Lost City Found: 5 Most Incredible Discoveries of the Week

A lost city and a new organ make this week's list of interesting discoveries:

• Dinosaur Eggs Hatched in Potentially Troublesome Way: A Florida State University professor thinks he's solved one of the "greatest riddles" about non-avian dinosaurs: Did their eggs incubate slowly like those of lizards, or quickly like those of birds? The former, found Gregory Erickson and his team, and they came to their conclusion by studying embryonic teeth. What they discovered is not just a neat-to-know fact, but one that could have contributed to the dinosaurs' demise.
• Man Follows Hunch, Says He Has Uncovered Lost City: Stuart Wilson says people thought he was crazy when he gambled $39,000—his life savings—on a 4.6-acre field in Wales. Having heard a farmer's story about moles digging up bits of pottery on the land, the amateur archaeologist had a hunch that something important lay beneath. Now, it looks like his bet is paying off: He believes his land is sitting atop the lost city of Trellech—Wales' largest city in the 13th century. He's uncovered quite a bit of evidence so far.

• Scientists Discover New Organ Inside the Human Body: Unprepared kids who want to get out of taking a test in 2017 can just tell the teacher their mesentery hurts. Irish researchers have classified a new organ in the human body while proving "the anatomic description that had been laid down over 100 years of anatomy was incorrect." The mesentery—which attaches the intestine to the abdomen—is the 79th organ in the human body, and better treatment for digestive and abdominal issues could be on the horizon.
• Fossil Fills in Big Blank About the Mysterious 'Ghost Shark': The chimaera, or so-called "ghost shark," is an elusive deep-water fish that has fascinated biologists for more than a century. Like its relative the shark, however, it's made of cartilage and thus rarely fossilizes, so little is known about its evolutionary past. Now the blanks have been filled in thanks to a "remarkable" 280 million-year-old fossil found on a farm in Cape Province, South Africa, in the 1980s.
• Mystery Cosmic Waves Traced to Distant Galaxy: Astronomers searching for the origins of a mysterious blast of radio waves have solved the puzzle: a tiny galaxy billions of light years from Earth. A repeating "fast radio burst" helped bring about some long-sought answers, but researchers were surprised at what they found out.

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