Undersea mountains are key locations for predators—with 41 times more sharks than the open ocean, new research shows.

Scientists track Antarctic krill via satellite to monitor ocean health amid climate change and fishing threats.

Discover the fascinating story of a sea cow fossil in Venezuela, providing insights into prehistoric marine life and predator ...

The two most prominent types of plankton in the ocean are zooplankton, which are tiny animal organisms ... phytoplankton form the base of aquatic food webs. Small fish, crustaceans, and ...

If shellfish populations collapse, the animals that eat them will also suffer, with ripple effects throughout the ocean's food web. Two important planetary ecosystems, coral reefs and polar regions, ...

Just as the human body serves as a habitat for bacteria and other microbes, diverse, tiny organisms known as protists host ...