But examine that water under a microscope ... the blue whale. Blue whales eat by filtering seawater through their comb-like baleen, pushing out water while keeping the plankton in their mouth.

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 ...

Ever since I saw plankton up-close for the first time ... notices them because individually they only become visible under the microscope. you can observe their inner body parts To film the ...

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 ...