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WWF   IMPORTANCE OF FORESTS The dawn chorus of birds singing, monkeys howling, frogs calling and insects buzzing. The crystal clear waterfalls that are perfect for a refreshing afternoon swim. Fireflies that illuminate trees at night. The beauty and tranquility of forests all over the world—from tropics to the tundra—inspire all of us. We know that eight out of 10 species found on land live in forests. Almost 300 million people, particularly in developing countries, live in forests too. But threats to the world’s forests are growing. Expanding agriculture, due to an increased population and shifts in diet, is responsible for most of the world’s deforestation. Illegal and unsustainable logging, usually resulting from the demand for cheap wood and paper, is responsible for most of the degradation of the world’s forests—the largest threat to the world’s forests. In degraded forests, small trees, bushes and plants often are severely damaged or dead; rivers are polluted; ...
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Here's some information about chambered nautilus, the cephalopod. The curious-looking  chambered nautilus , also known simply as the nautilus, is considered by many to be a living fossil. I t has remained unchanged for over 400 million years. During prehistoric times, there were about 10,000 different species of nautilus, but only a small handful are known to survive today. The nautilus is a mollusk and a member of the cephalopod family. It is closely related to other cephalopods such as the squid, cuttlefish, and octopus. Like most cephalopods, it can use jet propulsion to attain speeds of over two knots.  The life and habits of the nautilus are still largely a mystery, since it spends most of its time in deep water. The shell of the nautilus is comprised of many individual chambers. Each chamber is individually sealed and contains an amount of gas. This provides the animal with buoyancy.  The nautilus has many more tentacles than its close cousins. Depending on ...
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