Marine Phytoplankton are single-celled plants that grow in the ocean. According to NASA scientists, Marine Phytoplankton are responsible for up to 90 percent of the planets oxygen, which is vital for maintaining life on both land and sea.
NASA scientists believe that around 3 1/2 billion years ago, the appearance of tiny plant-like organisms with the ability to convert sunlight,, water and minerals into protein, carbohydrates, vitamins and amino acids marked the beginning of life on planet Earth. Phytoplankton are the foundation for all other life forms and are the food utilized by the largest and longest living animals and fish. Blue whales, bowhead whales, baleen whales, gray whales, humpbacks, and right whales all eat plankton. These species live between 80 and 150 years old and maintain great strength and endurance throughout their lives.
Nearly all life in the ocean is dependent on plants. Only plants have the ability to manufacture food out of inorganic substances, such as energy from the sun. Thus all animals are dependent on plants, since animals cannot derive nutrition from inorganic substances. Being the original producers, plants form the first link in the food chain, a sequence of organisms in which each is food for the next member in the sequence.