The chambered nautilus, also known as the pearly nautilus, is a mollusk with a beautiful, symmetrical shell that is divided into buoyancy-controlling chambers....
One of the most famous living fossils is back in the news. The coelacanth is an endangered deep-sea fish. Its fins fit to unique, wrist-like bones, and...
In 1950 the famed Italian physicist Enrico Fermi asked his coworkers at the lunch table the simple metaphysical question in regard to possible aliens...