Difference between Water Flea and Flashlight Fish

WATER FLEA vs FLASHLIGHT FISH: NOUN

Any of various aquatic crustacea of the order Cladocera, characterised by their jumping or jerky mode of swimming.
One of numerous small or minute crustaceans which skip about in the water like fleas, as Daphnia pulex; any branchiopod. See Daphniidæ, Cladocera, Cyclops.
Any of various other small aquatic crustaceans, such as some copepods, that swim with a similar motion.
Any of various small chiefly freshwater branchiopod crustaceans of the order Cladocera, having a bivalve carapace and typically swimming with jerking flealike motions, and including the daphnias.
Minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
Minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae

Any of various fishes with large bioluminescent organs, mostly in the family Anomalopidae.
Fish having a luminous organ beneath eye; of warm waters of the western Pacific and Puerto Rico
Fish of deep dark waters having a light organ below each eye

Any one of numerous species of small aquatic Entomostraca belonging to the genera Cyclops, Daphnia, etc; -- so called because they swim with sudden leaps, or starts.

Sea animal, Congo snake, Bell animalcule, Water bug, Malacostracan crustacean, Whale louse, Backswimmer, Beach flea, Water scorpion, Lernean, Phyllopod, Branchiopod crustacean, Branchiopod, Cyclops, Daphnia

Lepidosiren, Mousefish, Sciaenoid, Pondfish, Pomacentrid, Sea animal, Soapfish, Pearlfish, Combtooth blenny, Marine animal, Serranoid, Pricklefish, Boarfish, Photoblepharon palpebratus, Anomalops

Entoproct, Sea animal, Congo snake, Bell animalcule, Water bug, Malacostracan crustacean, Whale louse, Backswimmer, Beach flea, Water scorpion, Lernean, Phyllopod, Branchiopod crustacean, Branchiopod, Daphnia

Eelblenny, Siluridan, Lepidosiren, Mousefish, Sciaenoid, Pondfish, Pomacentrid, Sea animal, Soapfish, Pearlfish, Combtooth blenny, Marine animal, Serranoid, Pricklefish, Boarfish

Try blackworms, grindal worms, vinegar eels or the fully aquatic water flea.
The water flea Daphnia pulex alternates between sexual and parthenogenetic reproduction.

Northwestern Hawaiian Islands, as well as hypnotic moon jellies and flashlight fish that host bioluminescent bacteria.
Live Flashlight Fish: Have students explore these three sections to discover and learn about the animals featured here.