Plankton 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 hide caption

itoggle caption Christian Sardet/CNRS/Tara Expeditions

Brazilian fruits, including jambu and tapereba (lower right), displayed for a gathering of chefs in Sao Paolo. Paula Moura for NPR hide caption

itoggle caption Paula Moura for NPR

The Bronx may be up and the Battery down, but Central Park is where an amazing wealth of different sorts of microbes play. iStockphoto hide caption

itoggle caption iStockphoto

Samples of forage seeds in the International Center for Tropical Agriculture gene bank recently sent to the Global Seed Vault in Svalbard, Norway. International Center for Tropical Agriculture hide caption

itoggle caption International Center for Tropical Agriculture