Why it's incredible: The lake is one of the largest on Earth, but it lies beneath several miles of ice. Lake Vostok is a giant lake in Antarctica that is similar in size to North America's Lake ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet ...

Husky is a Roborovski, a dwarf hamster whose wild ancestors lived in the sandy deserts in Tuva, Mongolia, and Xinjiang in China as well as Zaysan in Kazakhstan. “A happy hamster needs a large ...