Digital Vision./Digital Vision/Getty Images. The Kalahari Desert is a vast arid grassland that reaches into three African nations -- Botswana, Namibia and South Africa -- and encompasses an area of approximately 360,000 square miles. Due to this great range and the seasonal and geographic variations in water and temperature, the Kalahari has a rich and diverse ...
Size of a great white shark compared to a human. Photo credit: Any, CC BY-SA 3.0. Winner: The great white shark might have scarier teeth, but the killer whale is bigger and faster. Killer whales also have an advantage when hunting in big groups. Notable examples of sharks vs. killer whales: Blue Cliffs Beach, Tuatapere, New Zealand â Boxing Day 2011.
In 2011 an alarming study by Standford University suggested Great White Sharks were becoming an endangered species. But new look at research on them in the Eastern North Pacific Ocean indicates the population is now growing thanks to conservation efforts, according to an international research team.