More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...
Far out in the South China Sea, a massive underwater sinkhole plungesnearly 1,000 feet straight down. It’s called the Dragon ...
Over 150 years ago, a fossilized organism known as Prototaxites emerged as an enigma regarding what early land life may have ...