Earthquakes are very common on Earth. They are caused when tectonic plates bump into each other and make energy waves.
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Did you know that one bird can have more than 25,000 different kinds of feathers? Birds use these feathers for a lot of important things, like warmth and flying.
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There used to be many different types of elephants living all over the world. These days, however, are only two types of elephants one in Africa and one in Asia.
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Did you know that scientists estimate there are 8.7 million known species? Surprisingly, only 1.8 million of these are named and described.
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The Moon was once mysterious, but now we know a lot more about it.
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Many animals are colored so they can blend into their surroundings. This is called camouflage. The most common camouflage colors are brown and green.
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There are more than 6,500 types of reptiles today. Many modern reptiles that can be traced back to ancient animals that are now extinct.
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Many people think that chameleons change colors to blend in with their surroundings, but the real reason they change colors is to change their body temperature. In Fact, chameleons change colors to adapt to the varied temperatures of their environment.
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Do you know how and why chameleons change their color? All humans and most animals have melanin. Melanin is the pigment that makes your skin the color it is. If you have more melanin, your skin will be darker. If you have less melanin, your skin will be lighter.
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The Romans named the planet Mars after the god of war. A reddish-orange planet with rusty colored rocks and dust, Mars is the fourth planet from the sun.
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Water covers most of the Earth. All of us have seen water in forms like rain, snow, or just in bodies of water. Water travels from place to place like from rivers and lakes to oceans. But how does it move? Does the wind blow it? Or do sea creatures push it? Either way, water is constantly moving—even when people are asleep.
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The Bengal tiger is the most common tiger living in the wild today. Nevertheless, it is still in danger of becoming extinct. There are only 1,850 Bengal tigers living in the world today, and their habitats are under constant threat from human expansion and urbanization.
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People talk about climate change all the time. You can see the effects of it everywhere you go, but some people don’t really know what it is, or why it’s happening.
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Khurs are part horse and part donkey. They might not look it, but khurs have to be very tough to survive in their desert habitat.
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Giant pandas are endangered animals. This species has to eat for at least eight hours and sleep for at least four hours every day. Primarily, pandas eat bamboo. This plant, however, is poor in nutrients. Because pandas do not digest very well, they must eat continuously in order to receive proper nutrients. Thus, they must eat nearly all day.
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The end of the Ice Age did more than create lakes in Wisconsin. In fact, rising temperatures also caused the extinction of many fascinating animal species.
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Blue Spruce Farm in Bridport, Vermont can now make electricity from cow manure.
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