We know next to nothing about Earth’s seafloors. According to a study published May 7 in Science Advances, humans have only ...

Photo Credit: NASA Oxygen-starved ocean “dead zones,” where fish and animals cannot survive, have been expanding in the open ocean and coastal waters for several decades as a result of human ...

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 ...

Oceans are not necessarily a permanent fixture on Earth, as they are able to appear and close due to the work of plate tectonics. More specifically, subduction zones — where tectonic plates slip ...