National Geographic : 1952 Jul
© National Geographic Society 47 Life and Death Swim Side by Side. An Egg-laden Arrowworm Seizes a Copepod Copepod, from the Greek, means "oar foot." The shrimplike creatures, which form the bulk of all animal plankton, row with waving limbs. Arrowworms, like this marauder, resemble tiny transparent torpedoes.