A fossil unearthed two decades ago in northeastern China has captured renewed scientific attention this summer after researchers confirmed it as the oldest known case of polycephaly—a congenital condition where an animal is born with more than one head. Published in the journal Biology Letters by the Royal Society in 2006, and recently revisited in several scientific outlets, the fossil …
Read More »20 Years Later, , the World’s Oldest “Two-Headed ” Dinosaur Was Discovered—And It Still Defies Logic
