National Geographic : 1965 May
The next morning he found eggs in the aquarium. Triumphantly he put them into various jars and dishes, and they began to hatch in the early afternoon. No midwife looked more affectionately at any child than Shelly did at the pinpoint-size nauplius lar vae swarming in his miscellany of glassware. He began a night-and-day vigil, for trans formations from one larval form to another might occur at any time. Throughout the various nauplius stages, the larvae were sustained by the yolk stores of the egg. When the yolk had been absorbed, Shelly offered the small shrimp various kinds of food, mostly one-celled algae. Under the microscope he could see their tiny guts crammed with the green-colored particles, but either the amount or the kind of food was not right. None of the larvae survived the first protozoeal stage. Most of them, it seemed, simply starved to death. But some larvae apparently died when the hairlike setae on their legs became entangled with the filamentous algae offered to them. Weighted down and immobilized, 643 KODACHROMES C N.G.S . Four-armed laboratory device enables Dr. James Schmulbach to find what kind of water shrimp prefer. Tubes lead to containers of water varying in salt and organic content. Several shrimp have entered the cham ber at lower left, containing 50 percent sea water. Cannibalistic pink shrimp devours the remains of a companion. The mouth, here showing as a dark-red spot, is so far behind the tip of the head that the crea ture appears to be stuffing the food into its chest.