Wetlands serve as some of the most complex and important ecosystems on Earth, providing habitat for many plants and animals, collecting and filtering water, and reducing the amount of damage from floods and heavy rainfal... More » Science Earth Science

A penguin is a type of flightless bird that lives along the coasts of the Southern Hemisphere, especially Antarctica, southern Africa, southern Australia and the southern and western coasts of South America. There are se... More » Pets & Animals Birds Penguins

Cool facts about owls include that they are one of the most diverse species because they live in all types of habitats and are native to every continent except Antarctica. There are as many as 220 different species of ow... More » Pets & Animals Birds Owls
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Human activity affects ecosystems in a wide variety of ways, but it primarily does so through agriculture, habitat destruction, water use and fishing. Whenever humans enter a habitat, they tend to reshape it to fit their... More » Science Earth Science

The sun is important to Earth because it helps regulate the climate, is the main source of energy for producers in the ecosystems and it keeps the oceans from freezing, along with providing light. If just one of these fa... More » Science Earth Science

One of the biggest disadvantages of hydroelectric energy is the major disturbance that damming a river causes to the surrounding people, animals and habitat. Another problem is that dams and hydroelectric power plants ta... More » Science Earth Science

Ocean water is salty primarily due to the large amounts of chloride and sodium on land which are dissolved by rainfall and carried to the sea by rivers and streams. Hydrothermal vents and underwater volcanoes located on ... More » Science Earth Science