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Spinosaurus Is the Holy Grail of Dinosaur Hunting
This pre-historic monster ruled the land and may also have been king of the water.
1,300-year-old bones may reveal secrets of pre-Incan society00:44
Sand from the stormy Sahara turns snow in Russia orange00:27
Can a self-taught rocket scientist prove the Earth is flat?03:46
Chinese scientists successfully clone monkeys00:52
Can 'Ewe' Believe It? Sheep Can Be Trained to Recognize Faces00:44
Divers Remove 'Toxic' Experimental Reef off California00:50