Photo Credit: NASA Oxygen-starved ocean “dead zones,” where fish and animals cannot survive ... “In addition, terrestrial ecosystems underwent a major transition between eight and six million years ...

New high-resolution satellite map reveals nearly 100,000 unknown ocean mountains, or seamounts, boosting climate and maritime ...

More specifically, the tropics. Dead zones are low-oxygen regions in the ocean where few sea life can survive. The main cause is human pollution. Until now, dead zones were thought to dominate ...