The function of a fish's gill rakers is to strain and retain food particles. Gill rakers are a set of tooth-like processes present on the inner side of the gill arch in most bony fish. More »

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Gill rakers are bony or cartilaginous outgrowths that project from the branchial arch of fish and assist in feeding by preventing stray particles or loose pieces from exiting through the gills. The size and arrangement o... More »

Crayfish use their gills to breathe. A crayfish has a gill at the base of each leg. These gills are very delicate and are covered by the crayfish's carapace, or shield. This carapace is aligned backwards from the head, a... More »

Gill rakers are bony or cartilaginous outgrowths that project from the branchial arch of fish and assist in feeding by preventing stray particles or loose pieces from exiting through the gills. The size and arrangement o... More »

While a whale's fins are similar in structure and function to those of a fish, whales and fish are not closely related, so their similarities are defined as analogous, not homologous. The development of fins in two such ... More »

Tilapia are herbivorous fish that feed mainly on algae, aquatic plant cells and almost any plant-based food source. When produced for the food market through aquaculture, their diet may also include standard farm feed pr... More »

Two major considerations in breeding GloFish, a genetically modified variety of the tropical zebra danio fish, are to keep the eggs from being consumed by the fish for food and to make sure they are not swept into the ta... More »

www.reference.com Pets & Animals Marine Life Fish