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Explanatory Filter in Action: Fairy Circles in Africa

The old "crop circle" craze fanned the curiosity of many, till humans were filmed making them. Now, scientists have a different circle mystery, and they're stumped.

What Is It About Africa?

What’s wrong with Africa? The answer is, of course, nothing – at least not with the continent itself. Africa is a bountiful land of incredible diversity and productive potential, boasting the largest mammals, the great apes, geological diversity, vast panoramas of beauty, and numerous spectacular plants and animals. What comes to mind to many westerners, though, is starvation, drought, disease, war, genocide, and a long history of slavery, exploitation and corruption. For decades the charities have assaulted our emotions with heart-wrenching images of starving children with distended stomachs and flimsy arms, covered in flies and mosquitoes. Is Africa to blame? No; these are mostly human-caused problems, offering hope of solutions. A diverse continent with vastly different political systems, Africa offers striking contrasts of riches and horrors.

Amazing Fossils: What Do They Mean?

Almost every week, on continents around the world, remains of once-living creatures come to light. Here are just a few of the fascinating fossils that have been reported this month. What do they suggest about life in their day?
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