ocean
The great body of salt water that covers mores than two thirds of the surface of the earth, any of its five principal geographical divisions, the atlantic, Pacific, indian, arctic, and Antartic.
Dictionary > Ocean
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The Water Cycle
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, sea land, and water in a cycle. This tutorial explains in brief what occurs in the water cycle. Also, it delineates what is groundwater and surface run-off. This is an essential background as to how the water moves in an ecosystem both geologically and biologically...
Animal Water Regulation
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Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like organisms. Because of the expanding diversity of animal life forms, taxonomists eventually came up with a classification scheme to group them into various phyla. Know more about the early animals that were likely the first ones to roam the ancient seas through this tutorial...
Early Mammals on Earth
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New Zealand’s Unique Geographical History
Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This lesson introduces the country's endemic species, ecology, and geology. Learn why long periods of geographical isolation have led to a large number of endemic species - native species that are not found anywhere else...
Ecology & Biodiversity: New Zealand Flora & Fauna
New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away from the supercontinent Gondwana about 80 million years ago, it has developed a distinct flora and fauna as a result of long geological isolation. Thus, many fascinating plants and animals are found nowhere else but in New..
