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Glossary of Terms

Ornithology
The scientific study of birds.
Ocean
A body of salty water composing a large portion of a planet's hydrosphere. On Earth, there is one large interconnected ocean although it is divided into five areas also called oceans: Pacific, Atlantic, Indian, Southern and Arctic.
Oceania
A geographical region in the southern part of the Pacific Ocean dominated primarily by islands, reefs and atolls. The area includes Australia, New Zealand, Melanesia, Micronesia, Polynesia and many other adjacent island chains.
Omnivore
A species that feeds on both plants and animals.
Oregon Beach Bill
Enacted in 1967, this landmark legislation provided for public ownership of state beaches from the water up to sixteen vertical feet above the low tide mark.
Organism
Any animal, plant or single-celled life form.
Overstory
The highest aboveground portion of a plant community, formed by the plant crowns.
Obligate Carnivore
A species which requires the nutrients in animal flesh to survive. These are often referred to as “true carnivores” and include many felines like Cougars and domesticated housecats.
Oregon
A state located in the northwestern part of the United States, bordered by California on the south, the Pacific Ocean on the west, Washington state on the north and Idaho on the east. It is also the state where the Oregon Coast Aquarium is located.
Operant
A means of modifying an animal's behavior through posttive reinforcement.

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