My little daughter is one year old. She all her time and.

People are forests, so many animals are .

    Have you ever heard of friendships among animals? At a zoo in Germany, an unusual friendship developed a cat and a bear.

    No one is quite sure how the friendship first began. One day, some (worker) in the zoo noticed a black cat was in the bear's cage, and the two animals were playing together peacefully. They were surprised well the small cat seemed to get along with the large bear. The bear keeper allowed the cat (stay) with the bear. And later the pair and their unusual friendship (become) a hot topic at the zoo.

    After several years, a new cage (build) for the bear. However, the cat was still in the same cage, so it walked around (angry) and cried to be with the bear. The bear keeper finally took pity on the cat let it stay with the bear. The cat and the bear got (close) than before. They often sat together and shared meals in the sun.

    Sometimes it may be natural for animals (have) their own ideas about making friends. These may surprise humans, who usually expect animals to form relationships with others of the same species.

    There are many brave and talented people who work in different branches (分科;分支) of science. Extreme (另类的) scientists are people who work in very difficult and dangerous places. They don't work in a1all the time like other scientists do. Instead, they search2information that can only be gathered through firsthand experiences. These scientists have to explore deep, dark caves, swim with sharks or act as swan mothers. The number of great white sharks in the world3smaller now. They are one of4animals on Earth.

    Scientists need to find out how many sharks5now. Sometimes scientists have to get very close to a shark. The easiest and6way to do this is from inside a shark cage.7, sometimes sharks attack the cage. They shake it, and bend the bars with their sharp8. The trumpeter swan is the largest swan in the world, but it9until it nearly became endangered birds. Because of this, parents swans10younger swans to migrate before.

    Scientists have to teach the younger swans how to do it. They teach the swans to follow a plane which looks like a lead swan. Extreme scientists are always trying to discover something new.

My mother has never that kind of thing.