Write a rezumate from the text below. Scientist 1 In general terms the three main threats to survival are temperature, lack of water and lack of food. Outside of environmental threats, many animals also need to be able to defend themselves from predators in order to survive. There are some environments that are naturally hot or cold, and the animals that live in them have usually adapted over time in order to be able to survive more comfortably. Polar bears in the Arctic have thick fur that helps them to keep warm on land and a layer of fat under their skin to help them keep warm when they swim in the cold water. There are many environments around the world in which water can be scarce. These can include deserts, very cold regions and areas in which water sources are polluted. The camel is a prime example of an animal that has adapted to living in regions with limited water supplies. Even though many people believe that a camel's hump is used to store water, the truth is that the hump stores fat. This fat can be used as energy when the camel needs it, and the hump will shrink and sag as the fat supplies are used up. Camels are actually able to survive for over a week, without any water, and can survive for months without eating. When they do find water, they can also drink a lot. A thirsty camel can drink over a hundred litres in just a couple of minutes. Scientist 2 Some animals can be threatened by a lack of food in their environment. Sometimes the food an animal cats is available, but it is difficult to reach. The echidna is an excellent example of an animal that has adapted to be ableto catch and eat its favourite food, ants. The echidna has a long snout and powerful front arms that it uses to dig ima hollow logs or anthills. It also has a long and sticky tongue that can extend about 15 centimetres past the end of its snot Sometimes the echidna will lie near an anthill, stick its tongue out and wait for ants to walk across it. It can do this for a very long time. Some animals also adapt in order to be able to defend themselves from predators. Some are able to run quickh to escape, others change colour in order to hide. The echidna is protected by a coating of thick spines. Scientist I There are many ways in which an animal can adapt to the environment around it.