Plankton are mostly microscopic algae and animals found throughout Earth's oceans, seas and lakes, although a few species are visible to humans. Unlike fish, plankton can't swim against the current.

The two most prominent types of plankton in the ocean are zooplankton, which are tiny animal organisms, and phytoplankton, which are plantlike. (Other forms of plankton include bacterial and fungal.

Plankton are microscopic plants and animals that make up the base of the marine food chain, meaning they are a basic source of energy for marine life all the way up to large predators like sharks ...

Climate change may also affect plankton numbers. As a slow-growing species that produces very few young, basking sharks are particularly vulnerable to extinction, which is why the animal is listed ...

Unlike the delightful SpongeBob SquarePants Movie, which now feels like a galaxy away, Plankton’s movie is an ugly, dull, and ...

Image caption, This is one type of plankton viewed through a microscope. In fact, many scientists believe that these tiny plants and animals are amongst the most important in our seas. They may ...