A mammal is an animal that feeds its babies with milk when it is young. There are over 4,500 types of mammals. Many of the most popular animals we know are mammals, for example, dogs, cats, horses, cows, but exotic animals like kangaroos, giraffes, elephants and anteaters belong to this group, too. Humansare also mammals. Mammals live in all regions and climates. They live […]
Factory farming is a method of mass food production in which animals are kept in very confined areas in order to get the best possible profit. Factory farming wants to keep production costs low and sell cheaper food to consumers. Factory farming is a much discussed issue. Animal rights activists andenvironmentalists claim that this type of food production is dangerous to ourenvironment and forces animals to live in an unworthy way. On […]
Marine biology is the study of the ocean’s plant and animal life. Marine life gives us food, medicine and other raw materials we need. It also maintains tourism andprovides us with an area of recreation. Organisms in the ocean produce oxygenand help regulate the earth’s climate. Coasts are partly created by marine life; some marine organisms even help to create new land. Marine biology ranges from very small organisms, like plankton, to huge […]
Cloning occurs when you copy a living creature. Two clones have the same genes, small structures with information in them that tells them what the body of a living thing should look like and how it should behave. You get the genes from your parents. Many people think that cloning is only done by scientists in laboratories, but, in fact, cloning also occurs in […]
Fish are animals that live in water. They are vertebrates, animals withbackbones, and come in all kinds of shapes, sizes and colors. Fish firstappeared in the oceans of the Earth about 500 million years ago, long beforedinosaurs roamed our planet. Today there are tens of thousands of different kinds of fish and new species are discovered every year. Over millions of years fish have […]
Coffee is one of the most popular hot drinks in the world. Almost a third of the world’s population drinks coffee. People often meet at cafes or coffee shops for acoffee break during the middle of the morning or stop work in the afternoon to drink coffee. About 7 million tons of coffee are produced every year. Brazil is, by far, […]
Sugar is used as a sweetener all over the world. People sugar all sorts of food and drinks to make them taste better. Sugar is often added to tea or coffee and tocertain types of pastries. The food industry adds sugar to soft drinks and ice cream. Sugar is a simple carbohydrate, a substance that gives us energy. However, too much sugar can be harmful. It can cause obesity and tooth decay. People whoconsume too much sugar […]
About 75% of the world’s animals are insects. They have been living on earth for over 400 million years, long before humans appeared. Insects have changed a lot and adapted to new climates in order to survive. Today, there are about one million different species of insects and scientists are discovering new groups daily. Insects have different sizes and body forms. Most of them are very small but […]
Bananas belong to the most popular and most eaten fruits in the world. They were first grown in tropical India and Southeast Asia over 4000 years ago. Arabmerchants brought them to northern Africa and the Middle East. Portuguese navigators discovered bananas when they sailed down the Atlanticcoast of Africa. From there they were brought to the Canary Islands, from where Spaniards took them to the New […]
The food chain is the order in which animals and plants eat each other in order tosurvive. Every living creature needs to eat other creatures below it. Everyecosystem has a different food chain, depending on which animals and plants live there. The lowest part of the food chain are the plants. They are called producers because they produce their own food using […]