A thriving realm of subterranean, submarine microbes could play an important role in the global carbon budget.
Melting along the Antarctic coast has researchers realizing that the deep sea has been holding Earth's warming.
Entire generations of crabs, worms and other deep-sea animals can survive for years on a single whale carcass.
In a surprise finding, undersea hot lava is baking ocean sediments and releasing greenhouse gases.
A new survey of the waters around the site of the Deepwater Horizon disaster has found a massive, submerged plume of hydrocarbons.
How exactly are some polar species able to find homes at opposite ends of the world?
These sharks' diets had long been a mystery, but DNA sequencing is shedding light on how they survive in their deepwater world.
The last time one of these fish was spotted in Sweden was in 1879.
A slushy mix of deep-sea water and oil is hindering attempts to slow the Gulf of Mexico leak.
It could be summer before oil gushing from the broken oil well in the Gulf is stopped.