Eric Walker added Daphnia magna - Wikipedia and Sometimes Food Fights Back - The New York Times to Daphnia magna, and added Daphnia magna to Zooplankton and Daphnia

Eric Walker added Daphnia magna to Daphnia, and added Daphnia to Daphniidae

Eric Walker added Daphnia to Daphniidae, and added Daphniidae to Cladocera