Filter feeder lure plankton or small fish into its mouth. The basking shark is a passive filter feeder, filtering zooplankton, small fish, and invertebrates from up to 2,000 tons of water per hour. Unlike the megamouth and whale sharks, the basking shark does not appear to actively seek its quarry; but it does possess large olfactory bulbs that may guide it in the right direction. Unlike the other large filter feeders, it relies only on the water that is pushed through the gills by swimming; the megamouth shark and whale shark can suck or pump water through their gills. Manta rays can
A Fish out of Water (book) A Fish out of Water (book) A Fish out of Water is a 1961 American children's book written by Helen Palmer Geisel (credited as Helen Palmer) and illustrated by P. D. Eastman. The book is based on a short story by Palmer's husband Theodor Geisel (Dr. Seuss), "Gustav, the Goldfish", which was published with his own illustrations in "Redbook" magazine in June 1950. The story is about a boy who buys a fish, named Otto, from a pet store. The store owner, Mr. Carp, gives the boy instructions on how to care for the fish, including strict feeding instructions: "Never