Scientists Have Discovered a 600-Mile Coral Reef
Among the world’s rivers, the Amazon reigns with the heaviest crown.
It begins in Peru, less than 75 miles from the Pacific shore, among the tiny glacial streams that trickle through the Andes. Those creeks become a river, which joins a network of other capillaries draining more than 3 million square-miles of South American land—water from mountains, foothills, and the world’s largest rainforest uniting to form a monumental flow that thunders clear across the continent until it gushes into the Atlantic. When measured by discharge, it is the largest river in the world: Every day, one-fifth of all the water that flows from all Earth’s rivers into all Earth’s oceans does it here, as the Amazonian flume. Nutrients in the spill support oceanic algae blooms hundreds of miles from shore.
Now, researchers have added yet another jewel to the river’s crown. A team of Brazilian and American scientists have discovered a new sponge and coral reef more than 600 miles long (1,000 kilometers), located at the mouth of the Amazon River.