It's true that many dads in the wild aren't interested in parenting, but there are some that work pretty hard to give their little ones a good start. Maybe one of these dads will make you remember your own dad!

    The male giant water bug doesn't seem to mind a heavy load on his back for his kids. The female puts about 100 to 150 eggs on the back of the male, and then she leaves. Once the female is gone, the male has to look after the eggs. It usually takes one to two weeks for the eggs to hatch. The father giant water bug jumps around to make sure the growing eggs get enough air and water. All this time he can't fly because of the weight of the eggs growing rapidly on his back.

    Now let's turn to the male stickleback fish. When the mother leaves after laying her eggs, the father tends his young. If the young fish go too far away, their father helps with their safe return by carrying them back in his mouth. The male stickleback looks after all his young — as many as 100 — until they can live on their own.

    A similar example can be found in emperor penguins living in cold areas. The male emperor penguin goes without food while looking after his egg until it hatches. For about 62 to 67 days, the egg stays on top of the father's feet, in very cold temperatures that drop down to -39° C. As a result, the father may lose nearly 50 percent of his body weight while waiting for his baby penguin to be born!

    Google, one of the world's outstanding tech companies, was attacked. It wasn't its search engine that was attacked or its advertising platform or even its social network, Google+. Instead, it was a building.

    Two web security experts hacked (侵入) into its Wharf 7 office in Sydney, Australia, through Google's building management system (BMS). One of them, Billy Rios, says, “My colleague and I have a lot of experience in web security, but it is not something that people couldn't learn. Once you understand how the system works, it is very simple.”

    They found the system on Shodan, a search engine that lists devices connected to the Internet, and then ran it through their own software to identify who owned the building. In the case of the Google hacking, the researchers had no immoral purpose and just informed Google about what they found.

    According to Mr. Rios, Who runs security company Whitescope, there are 50,000 buildings currently connected to the Internet, including research institutes, churches and hospitals, and 2,000 of those are online with no password protection. Martyn Thomas, a professor of IT at Gresham College in the UK, says, “It is beyond doubt that attempts to attack building management systems arc happening all the time.”

    Making a building smart generally means connecting the systems that control heating, Hating and security to the Internet and the wider corporate network. There was a strong reason for doing this, said Andrew Kelly, principal security consultant at defence company Qinetiq.

    “Energy savings are the biggest factor in connecting building management systems to the corporate network,” he says. “It gives those who run the building better control and offers between 20% to 50% in energy savings,” he adds.

    But it also makes them less secure. And if any of these feels like a Hollywood film, think again.

    Trees are useful to man in three very important ways: they provide him wood and other products; they give him shade; and they help to prevent drought (干旱) and floods.

    Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.

    Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.

    Even where a government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. They cut down the trees but are too careless to plant and look after new trees. So unless the government has a good system of control, or can educate the people, the forests slowly disappear.

    This does not only mean that there will be fewer trees. The results are even more serious: for where there are trees, their roots break the soil up, allowing the rain to sink in, and also bind the soil. This prevents the soil from being washed away. But where there are no trees, the rainfalls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich top soil in which crops grow. When all the top soil is gone, nothing remains but worthless desert.

    First aid is defined as the emergency care given to a sick or injured person. The goals of first aid are to prevent death and to prevent injuries from becoming worse. Each emergency condition is different. However, the following rules apply to any kind of emergency.

    Be aware of your limitations. Do not try to do more than you are able to. Nor should you do things if you are unfamiliar with them. Do what you can under the conditions at the time.

    Stay calm. Acting calmly will help the victim feel safe.

    Take a quick look to see if the victim is bleeding, and if there is a pulse.

    Keep the victim lying down and do not move him or her. You could make an injury worse if you move the victim.

    Call for help or ask someone to make the EMS system (急救系统) start.

    Keep the victim warm. Cover the victim with a blanket. Coats and sweaters can be used if a blanket can not be found.

    Reassure (使……安心) the victim. Explain what is happening and that help has been called.

    Do not give the victim any food or fruits.

    Keep the bystanders (旁观者) away from the victim. Bystanders want to have a look, offer advice, and say something about the victim's condition. The victim may believe that the condition is worse than it really is.

    Food Parts You Should Never Throw Away in the Garbage

    Pineapple Core (果心)

    When you carve out the core of t pineapple, don't throw it in the garbage. You can use the pineapple core for all kinds of recipes, and there are tons of vitamins and  minerals hiding within.To use the pineapple core: cut it and add it to fruit salad, put it into smoothies (水果雪泥), cut it into cubes and freeze for law use, or simply add it to water or even tea to improve flavor.

    Kiwi Skln

    If you never thought you could eat kiwi in the way you eat a peach, think again. That skin really is good for you and contains a lot of vitamin C, and in fact, it's also higher hi fiber than the rest of the fruit. Of course, that rough, ugly skin isn't for everyone, so if you don't like it, try adding a whole kiwi to a smoothie to hide the taste of the skin.

    Banana Peel

    Most of us eat the banana without giving the soft peel a second thought. Here's why that's a mistake: banana peel contains tryptophan (色氨酸), which increases "the happiness hormone" to help with mood regulation and nerve system. There are a few creative ways to use the peel. Cook or boil for at least 10 minutes to soften. You can add it to smoothies, stir-fries, or soups. And, for a treat, simply slice and bake a banana with the skin on.

    Water melon Skin and Seeds

    The delicious, red inside makes for a refreshing snack or juice, but you're able to get some powerful nutrients in the skin and seeds as well. Cut out the white part under the green outside and use it in your cooking. It has vitamin C and B6, to keep you healthy. As for the seeds, you can roast them in the oven. Then add them to salads or to nut snacks.

    MacDonald's will soon remove cheeseburgers and chocolate milk from its Happy Meal menu to set a good example in offering a healthy diet for kids at its restaurants.

    Customers can still ask for cheeseburgers or chocolate milk with kids' meal, but MacDonald's said that not listing them would make them less likely to be ordered. Since it removed soda from the menu four years ago, orders for it with the Happy Meal have fallen by 14%.

    As MacDonald's is known for getting more business from families with children, it is especially important for it to offer a healthy diet instead of junk food. And the Happy Meal is a key part of that. The Happy Meal has long been a target(目标) of health advocates(拥护) and parents who link it to childhood obesity(肥胖症). To get rid of its bad image, MacDonald's has made many changes on the Happy Meal over the years, including cutting the size of its fries and adding fruit.

    Recently, the company replaced its former apple juice with a new kind of juice that has less sugar. MacDonald's wants all its Happy Meal choices to have 600 calories or fewer. It also wants less than 10% of the meal calories to come from fat and added sugar. The cheeseburger and chocolate milk didn't meet those new standards. However, MacDonald's is trying to cut sugar from chocolate milk and believes it'll be back on the menu eventually.

    There will be other changes. For example, bottled water will be added as a choice to the menu, but it will cost extra. Currently, the Happy Meal menu lists milk, chocolate milk, and apple juice.

    For international restaurants, MacDonald's said that a least half of the Happy Meal choices available must meet the new standards. Some MacDonald's restaurants are adding new menu items to obey. For example, In Italy, a grilled chicken sandwich was added to the Happy Meal menu.