When is David guppy's birthday?

Does fish have tongue? How long does it take for a female goldfish to lay it's eggs? Are these shellfish very strong? Why is a fish considered an organism but not a rock? How does the liver in sharks differ from the liver in bony fishes? Do black tipped sharks eat people? Is there such thing as a dog shark? How many acres is Shedd aquarium? What is the direct object in the sentence Many fishermen collect worms at night? Is freshwater clear? What do stingrays encounter in its living area? What can fish do? What is the plural possessive form of salmon? What do mermaids look like exactly everything k? What do fishes use in getting and eating food? What is the most dagerous shark in the world? How much does a cusk eel wiegh? Were megalodons real in the dinausour time? Do hagfish live in salt water or fresh water? Why hasn't Brian thought of catching fish earlier?