People already know a lot about animals. However, there are still some things about animals that may surprise you. Here are {#blank#}1{#/blank#}about animals you probably didn't know.

    Cows do have best friends and feel stressed when they are separated. Scientists have found that cows are very social animals and that a cow always {#blank#}2{#/blank#}other cows. When a cow is with its friends, it feels relaxed, compared with when it is alone.

    During a breeding season, a male penguin will offer a small stone to a female penguin as a gift. If she takes it, they will become partners. When the female penguin lays an egg, she and her partner may carry it {#blank#}3{#/blank#}, because some penguins don't build nests.

    Crocodiles (鳄鱼) swallow (吞) stones. Crocodiles always swallow their food instead of eating it like other animals. They swallow stones which break the food into very small pieces in their stomachs. These stones may stay in their stomachs {#blank#}4{#/blank#}.

    Elephants use plants to treat pain or other illnesses. Scientists once found a pregnant (怀孕的) elephant in Africa who ate a kind of plant which was not part of her normal food. Four days later, she {#blank#}5{#/blank#}a baby elephant. The same plant was used by the local pregnant women.

    Teenager Jake Deham was skiing with his family in the USA when he fell over and lost one of his skis. His family didn't know that he had a problem. They kept on skiing. When they got to the foot of the mountain, there was no sign of Jake.

    Jake couldn't find his ski anywhere. In the end, he decided to take off his other ski and walk down the mountain. But he couldn't work out the right way to go.

    It was now getting dark and he was a long way from any place of safety. He knew that he might die that night in the cold temperatures. But Jake kept calm. At home, Jake watched a lot of programs about living in difficult situations. He remembered the advice from these programs and knew that he should build a hole in the snow. He made a hole and pointed it up the hill so the wind couldn't blow into it. Outside his hole, the temperature fell to a dangerous-15℃ that night, but inside it Jake was safe from the cold.

    But he had to get down the mountain. The TV programs always said," If you are lost, you should find someone else's tracks(足迹) through the snow and follow them." "I wanted to live my life." remembers Jake." So I got up and I found some ski tracks and I followed those." He walked and walked and finally he saw lights. Nine hours after he lost his ski, he found a team of worker who came to save him. He was safe!

    His mum was very happy when she heard the news. Amazingly, Jake didn't even have to go to hospital. He got through the terrible experience without any injuries.

    So, the next time someone says that watching TV is a waste of time, think of Jake. Sometimes TV can save your life!

Two men were travelling together through the forest on a lonely path. Before the travelling, they said they would help each other when there was danger. They had not gone far when a bear rushed towards them from some bushes.

One man was a good climber, and quickly climbed up a nearby tree. The other man tried to climb the tree but failed. Looking at his friend in the tree, he shouted loudly for help. The man in the tree was afraid that his friend under the tree would pull him down, so he didn't give his friend a hand.

The man under the tree, seeing that he had no chance alone against the bear, fell to the ground and pretended to be dead. The bear came nearer and nearer. It made his blood run cold.

The bear came to him, lowered its great head, smelled him all over and touched him with its nose. The bear thought the man was dead, so it went off into the forest again without hurting him. After the bear left, the other man came down from the tree, and smilingly asked his friend what the bear had said to him. "For I could see," he said, "that he put his mouth close to your ear."

"He told me to tell you," replied the other, "that you were a great coward(懦夫), and that it is dangerous to travel with a friend who leaves you behind when there is danger."

My name is Dingding. I'm from Sichuan. I'm a little1 and I am only one year old. I like eating 2 and bananas are my favorite. I like forests, but now I 3 in a zoo. I am in a big cage(笼子)4 other monkeys. I'm very 5, so people like me and often give me some fruit to eat. 6 I'm not really happy. Why？Because I can't live with my parents and I can't climb trees here. Every day, I eat food in the cage. I 7 and relax in the cage. I really want to 8 my parents and climb trees in the forests. Dear people, animals are your 9. We live in the same world. Please let me and other monkeys live in the 10, not in the cages.