Find out how landscapes are formed over millions of years; discover how wind, water, and ice sculpt valleys and mountains; and see a new island emerge as a volcano erupts.
How does a dolphin swim? How do they give birth in the water? How do they communicate with each other? Learn all about these intelligent, affectionate and sociable creatures that …
"Who were our earliest human ancestors? Where did they come from? What did they hunt? What tools did they invent? How did they evolve over time? What traces did they leave behind? …
Whales, the biggest animals on Earth, live on the sea. It is a wonderful creature but becoming sadly rare. Watch this giant leap gracefully out of the waves. See how it looks after …
