Human began farming around 12,000 years ago, and only in the past 50 years have scientists realized we're not the only species to research into agriculture. A new study has revealed that a small Fijian ant species beat us to becoming the first farmers by almost three millions years.

    The ants have been observed carefully sowing seeds, fertilizing (施肥) them, and waiting for them to grow into plants which bear tasty fruit. What led to the formation of this relationship remains a mystery to scientists. But it puts the ants millions of years ahead of the first human societies to use farming techniques.

    The newly discovered relationship is unique to the animal kingdom. Researchers say they have already watched ants spread seeds, and ants feed plants, but they never had a case where they farm a plant they can't live without. The ants rely on the plants for shelter and food, while the plants need the ants to sow and spread their seeds.

    The find puts the ants millions of years ahead of the first human societies to use farming techniques, who began using agriculture around 12,000 years ago.

    As the plants grow under the care of the ants, the plants to keep further growth. Once the plant is big enough, its hollow chambers provide shelter for the ants. It had previously been spotted that the ants like to live in these small chambers, but the Munich researchers have uncovered the true nature of the relationship that ants sow and take care of the plants to grow themselves a new home.

    The ants will eat the fruit of the plant and harvest their seeds for further projects.

While many other examples of mutually (相互地) beneficial relationships between ants and plants exist, the discovery marks the only case in which both parties other for are totally dependent on each other survival.

    Martha had been working for Miller Laboratories for two years, but she was not happy there. Nothing significant had happened in the way of promotions or salary increases. Martha felt that her supervisor, a younger and less experienced person than she, did not like her. In fact, the supervisor often said unpleasant things to her.

    One day, while talking with her friend Maria, she mentioned how discouraged she was. Maria gave her the name of a cousin of hers who was director of Human Resources Department for a large chemical company. Martha called him the next day and set up an interview on her lunch hour.

    During the interview, Mr. Petri said, "You're just the kind of person we need here. You're being wasted in your other job. Give me a call in a day or two. I'm sure we can find a place for you in our organization." Martha was so happy that she almost danced out of the building.

    That afternoon, Ruth Kenny, her supervisor, saw that Martha had come in ten minutes late from her lunch hour and she said, "Oh, so you finally decided to come back to work today?"

    This was the last straw. She could not take another insult. Besides, Mr. Petri was right: she was being wasted in this job.

    "Look," she said angrily, "if you don't like the way I work, I don't need to stay here. I'll go where I'm appreciated! Goodbye!" She took up her things and stormed out of the office.

    That night she called Maria and told her what had happened and then asked Maria, "What do you think?"

    "Well," said Maria carefully, "are you sure about the other job?"

    "Well, not exactly, but..."

    Maria continued, "Will you be able to get a recommendation from Ms. Kenny if you need one?"

    "A recommendation?…from Ms. Kenny?" hesitated Martha, in a worried tone.

    "Martha, I hope you didn't burn your bridges," Maria said. "I think I would have handled it differently."

    It's difficult to know the exact answer to whether babies dream and what they dream about. However, sleep experts have shown that newborns dream the most in the first two weeks after birth. Babies spend most of their sleeping time in REM(rapid eye movement) stage. As dreaming takes place in a light state of sleep, newborns tend to wake up due to noises, movements and other factors. When dreaming, newborns make a few noises and their eyes move. They may move around the sides or up and down. They may laugh, scream, or cry during the REM sleep. Also, their facial muscles, hands, and legs move, due to which they may wake up. So wrapping a baby in swaddling(裹紧的) clothes can keep the baby's body from moving and help them sleep better. As babies grow, their body movement decreases when dreaming.

    Studies say that the brain activity associated with dreaming is essential for the babies' mental development. During the REM stage, the flow of blood to the brain increases. As a result, certain nerve proteins are produced, which are the building units of the brain. Babies get stimulation from what they see, hear, or feel. The brain processes the information acquired while awake, and stores what is essential to the individual. A study concludes that babies learned while they were dreaming.

    What's the time for babies to start dreaming? Researchers say that before birth, babies start experiencing REM sleep around week 25, and so they may start dreaming at the point. On the contrary, some psychologists believe that children start having dreams when they are about 5 years old. At that age, they start becoming aware of themselves and begin to understand the things around them, which is what dreams are actually made of.

    A year ago, my friend and I went to a nearby town to attend a wedding. After the reception, we were waiting for a public transport bus to go back home. It was nine o'clock at night, and although many buses passed, none stopped.

    We waited for an hour and were getting forlorn. We wouldn't be able to stay overnight because it was weekday, and we both needed to work the next day. It was almost 10 p.m. when a family who had attended the same wedding passed by in their car. Probably sensing that we were waiting for some means of transport, they stopped and gave us a lift.

    I was so touched by their kindness, and I expressed my thanks to them. When we reached my hometown, the family dropped us at the nearest point from where we could catch a shared taxi to get back to the spot where we had parked our bike. On the way, a laborer stopped the taxi. The driver saw his clothes and asked him whether he had money to pay the fare.

    The laborer shook his head and said, "No." On hearing this, the driver refused to take him. I remembered my own dilemma a few minutes earlier, and I told the driver to allow him to sit with us, as I would pay his fare. What an immediate opportunity to pass on the family's act of kindness!

    That night, I felt lightness in my heart, and I went to sleep happily and filled with joy about what I had gotten to do. How I wish this chain of kindness could continue all over the world with your help! That is why today I specially share my story with you again!

    A Canadian woman who lost her diamond ring 13 years ago while cleaning her garden on the family farm is wearing it proudly again after her daughter-in-law pulled it from the ground or a carrot.

    Mary Grams, 84, said she can't believe the lucky carrot actually grew through and around the diamond ring she had long given up hope of finding. She said she never told her husband, Norman, that she lost the ring, but only told her son. Her husband died five years ago.

    "I feel glad and happy," Grams said this week. "I grew into the carrot. I feel it amazing."

    Her daughter-in-law, Calleen Daley, found the ring while getting carrots in for supper with her dog Billy at the farm near Armena, Alberta, where Grams used to live. The farm has been in the family for 105 years. Daley said while she was pulling the carrots and noticed one of them looked strange. She almost fed it to her dog bu decided to keep it when she was washing; the carrots she noticed the ring and spoke to her husband, Grams'son, about what she had found.

    They quickly called Grams. "I told her we found her ring in the garden. She couldn't believe it, "Daley said." It was so strange that the carrot grew perfectly through that ring."

    Grams said she wanted to try the ring on again after so many years. With her family looking on, she washed the ring with a little soap to get the dirt off. It moved on her finger as easily as I did when her husband gave it to her.

    "We were laughing," she said. "It fits. After so many years it still fits perfectly."