AdvertisementRevealed: The Ocean's Tiniest Life At The Bottom Of The Food ChainMay 22, 2015Christopher JoycefacebookEmailPlankton collected in the Pacific Ocean with a 0.1mm mesh net. Seen here is a mix of multicellular organisms — small zooplanktonic animals, larvae and single protists (diatoms, dinoflagellates, radiolarians) — the nearly invisible universe at the bottom of the marine food chain. (Christian Sardet/CNRS/Tara Expeditions)