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!

    In general, people talk about two groups of colors: warm colors and cool colors. Researchers in psychology think that there are also two groups of people: people who prefer warm colors and people who prefer cool colors.

    The warm colors are red, orange and yellow. Where there are warm colors and a lot of light, people usually want to be active. People think that red, for example, is exciting. Sociable people, those who like to be with others, like red. The cool colors are green, blue and violet. These colors, unlike warm colors, are relaxing. Where there are cool colors, people are usually quiet. People who like to spend time alone often prefer blue.

    Red may be exciting, but one researcher says that time seems to pass more slowly in a room with warm colors than in a room with cool colors. He suggests that a warm color, such as red or orange is a good color for a living room or restaurant. People who are talking or eating do not want time to pass quickly. Cool colors are better for offices or factories if the people who are working there want time to pass quickly.

    Researchers do not know why people think some colors are warm and other colors are cool. However, almost everyone agrees that red, orange, and yellow are warm and that green, blue, and violet are cool. Perhaps warm colors remind people of warm days and the cool colors remind them of cool days. Because in the north the sun is higher during summer, the hot summer sunlight appears yellow.

    Do you know the difference between a food chain anda food web? Food chains show how a living thing such as a plant or an animal gets its energy. A food web consists of multiple food chains and includes many more plants and animals than a food chain includes. This diagram shows a food chain within a food web of the African savanna.

    According to a recent study, a new genetically modified rice can prevent infections of HIV, the virus responsible for the disease AIDS.

    The study reports the newly-developed rice produces proteins that attach directly to the HIV virus. This process prevents the virus from mixing with human cells. The scientists say it can remove the effect of the virus and block its spreading.

    The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in developing countries. Nearly two-thirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease.

    The new study predicts the rice-based method will lead to long-term use of the anti-HIV treatment across the developing world. Researchers said the "groundbreaking" discovery is "realistically the only way" that anti-HIV combination treatments can be produced at a cost low enough for the developing world.

    They say the easiest and most cost-effective way to use the rice will be to make it into a cream to be put on the skin. The HIV-fighting proteins can then enter the body through the skin. People all over the world could grow the rice and make the cream themselves. This would prevent the cost and travel required for many patients to receive treatments and medicine.

    The process of changing the genetic structure of food crops has been debated for some time. Critics of genetically engineered crops believe they can harm people. The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.

    TRAIL SAFE! is a unique safety training program designed specifically for National Park Service (NPS) Trail Volunteers, but is useful to everyone! It's based upon NPS Operational Leadership Training, where the human factor of safety is explored. TRAIL SAFE! captures (捕捉) the core learning objectives of the 16-hour Operational Leadership course while allowing volunteers to learn from their own homes online.

    The TRAIL SAFE! series includes eight video lessons, each ranging in length from 18 to 40 minutes long. Watch them over the course of multiple days, or "binge watch" the entire series in three hours—it's up to you—but please watch them in order from Lesson 1 through Lesson 8. After viewing the lessons, send your training verification (验证) emails to register your participation. When you have viewed and registered for all eight individual lessons, each participant will receive a TRAIL SAFE! pin and a SPE/GAR card in the mail for use in the field. Thank you for helping to make Sleeping Bear Dunes one of the safest work environments for NPS Trail Volunteers like yourself.

    Ready to start?

    Click on this link to access all TRAIL SAFE! videos: https://www.nps.gov/iatr/trail-safe.htm

    If you require Audio Descriptive versions of TRAIL SAFE! the link to those videos is also available on the Ice Age Trail site.

    Record your participation

    In order to receive credits for your participation, please fill in your answers to the following questions and email to: Matthew mohrmannps.gov.

    Which video lesson did you just complete viewing?

    Name of the Trail where you volunteer.

    Your name and full mailing address, so we may send your course completion materials to you.

    Names and addresses of others if you are viewing this lesson in a group setting.

    Optional: Please let us know any comments or suggestions you have about this lesson.

    Upon registering your completion for the entire eight lesson series, you'll receive your TRAIL SAFE! pin and risk assessment card via mail.

    A story posted by The New York Post Monday tells the tale of Katrina Holte, a Hillsboro woman who quit her job to cosplay a 1950s housewife.

    Let me start by expressing admiration to Holte for using her 2019 freedoms to follow her 1950s dreams. Everyone should be so lucky as to get to decide what they wear and how they spend their time. That's the future our foremothers fought for.

    But as much fun as I am sure she is having living a vintage (复古的) life, which literally includes watching shows like "I Love Lucy" and listening to vinyl recordings (刻录碟片), I think it's important to remember that being a 1950s housewife was actually totally awful, and something our grandmothers and mothers fought against.

    For example, once I called my grandma and asked her for her recipe for Cloud Biscuits, these delicious biscuits she used to make that we would cover with butter and homemade raspberry jam on Thanksgiving.

    "Why would you want that?" she said. "Go to the store. Go to the freezer section. Buy some pre-made biscuits and put them in the oven."

    She straight-up refused to give me the recipe, because it was hard and took a long time to make. In her mind, it was a waste of time.

    Getting off the phone, it occurred to me that spending every day of your life serving a husband and five children wasn't fun at all. And then there are the grandchildren who eventually come along demanding Cloud Biscuits, a whole new expanded set of people to feed.

    She was basically a slave to those hungry mouths, cooking scratch meals three times a day.

    When she wasn't trapped in the kitchen, she had to keep the house clean, make sure she looked good enough to be socially acceptable, and make sure her kids and husband looked good enough to be socially acceptable. And she had no days off.

    I know my grandma loves her kids and her grandkids, her husband and the life she led, but man, it must have been a lot of thankless, mindless labor.

    No wonder everyone went all-in on processed foods when they came around. Imagine the nice break something like a microwave dinner would give a woman working, unpaid, for her family every single day?

    I also had another grandma. She was a scholar who helped found the Center for the Study of Women in Society at University of Oregon. She was a pioneering second-wave feminist who wrote books, gave lectures and traveled the world.

    But, she did all of that after divorcing my grandpa, when most of her kids were out of the house. Back then, in the 1950s and the 1960s, there was no illusion about women "having it all". How could that even possibly happen? If you were taking care of a family, waiting on your husband, you had no time to follow your dreams, unless you made that your dream.

    A lot of women took that approach. We call it Stockholm Syndrome now.

    And of course, these women I am talking about are upper-middle-class white women. Romanticizing the 1950s is especially disgusting when you think about how women of color and poor women were treated back then, and the lack of education and choices available to them.

    Because the women in this country demanded something approaching equality, Holte has the chance to live out her fantasy. Not every woman in America is so lucky.

    We still don't have pay equality and in many states, we still don't have autonomy over our own bodies. Poor women and women of color still lack the opportunities of their wealthy and white peers.

    And while it's getting better, women are still expected to be responsible for the emotional labor of running a household and raising the children.

    But at least we can get jobs. At least we don't have to sew our own clothes, wear a full face of makeup every day and spend hours making Cloud Biscuits some ungrateful kid will wolf down, barely remembering to say thank you.