Plankton are a collection of tiny organisms ... Many phytoplankton are microscopic, and they range from single-celled algae to bacteria to protists, which aren’t plants or animals.

Plankton are mostly microscopic algae and animals found throughout Earth's oceans, seas and lakes, although a few species are ...

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 ...

A microscope image of a shelled plankton. According to research from The University of Texas at Austin, plankton populations like this flourished in the tropics during past global cooling and may ...

As the amount of carbon dioxide in the atmosphere continues to accelerate, trees, plants and even the ocean’s tiny plankton ...