Coral reefs, benthic life, and a huge variety of ocean fish take advantage of these ... through the aphotic zone all the way to the gigantic abyssal plain. Much of the abyssal plain is between ...

Some of the largest animals we know about are there, and unique ecosystems like the benthic zone exist in the darkest depths ...

Benthic sharks, which can rest on the ocean floor, tend to have shorter, rounded pectoral fins, while pelagic sharks, which are obligate ram ventilators that must continuously swim to breathe ...