1 . It would be easy to believe that Mother’s Day was created by a greeting card company. After all, the day is celebrated with special sales and brunches, lots of presents and massive advertising campaigns. But the day was actually conceived more than a century ago by Anna Jarvis of West Virginia as a way of honoring the sacrifices mothers made for their children.

Jarvis’s mother, Ann Reeves Jarvis, helped start “Mothers’ Day Work Clubs,” teaching women how to care for their children. During the Civil War, she organized “Mothers’ Friendship Day,” where mothers of Union and Confederate soldiers met to try to promote harmony. The younger Jarvis Was inspired by all the things her mother had accomplished with her social work.

When Jarvis was young, she overheard her mother praying, “I hope and pray that someone, sometime, will find a memorial mother’s day honoring her for the matchless service she offers to humanity in every field of life.” When her mom died in 1905, Jarvis looked through all the sympathy cards she received. She underlined all the kind words that praised her mother, reading them over and over. The outpouring of kindness for her mother inspired her to create a day to honor all mothers.

The white carnation was her mother’s favorite flower, so it became the symbol for the day. She said it symbolized the truth, purity and charity of a mother’s love. Her idea of celebrating Mother’s Day was wearing a carnation while visiting your mother or maybe going to church together. Children were also encouraged to write letters to their mothers, sharing the depths of their appreciation.

The first official Mother’s Day events were held on May 10. 1908, at the church where her mother taught Sunday School in Grafton, West Virginia, and at the Wanamaker’s department store auditorium（礼堂）in Philadelphia. Jarvis didn’t attend the event in Grafton, but she sent 500 white carnations.

2 . Have you ever had the feeling that you can't think when there is too much noise around? Did you ever think a fish could experience that feeling too? A recent paper published in Science titled “Soundscape(声景)of the Anthropocene Oceans”, combined over 10,000 scientific papers, confirming that undersea life knows that exact same feeling, more often than not. Anthropogenic(人为的)ocean noise, also known as underwater noise pollution, has created a dramatic impact on marine life due to “human-caused” activity within and neighboring our oceans.

Disney Pixar's animated film Finding Nemo educated us about the ocean, and specifically within the ordinary world of a clown fish. A fact many may not know is that clown fish spend the first part of their lives as larvae(幼体), drifting with the current(洋流)of the ocean until they become strong enough to swim against it. Once they are powerful and strong, they head home in sheltered coral reefs. There is only one disadvantage-the fish can't physically see the reef, but they can hear it. The only problem is, if they can't hear it, will they ever make it home?

Our anthropogenic ocean noise, such as cargo ships, ship and boat propellers, surfing, deep sea mining. etc. are causing destruction of marine life. According to Time, sound is the sensory signal that travels the farthest through the ocean. Anthropogenic noise drowns out the natural soundscapes, putting marine life under immense stress. Altogether, this stress then affects their general health, disturbs their behavior, physiology. reproduction and, in extreme cases, causes death. Marine life can adapt to noise pollution, however, only if they can escape it. This only renders further complications(困难, 问题)of straying(使偏离)species from their traditional breeding regions or separating them from their families.

Now, what if we told you there is already a solution? Multiple remedies, ideas and designs are currently in the works or already exist to get rid of and change the damage of anthropogenic ocean noise. As Time explains, from wind-powered ships to noise-reducing propellers(螺旋桨)，floating wind turbines(风力发电机)and “bubble curtains” that muffle construction noise, the solutions are already available and in some cases, cost-effective(划算的). The authors of the paper hope it will catch the attention of policymakers, who historically speaking, have ignored the mater still to this day.

Of all the challenges ocean creatures are battling, luckily sound pollution is the easiest compromise humans can make. Once the noise has decreased, marine life will be able to better manage everything else it is up against.

3 . A few years ago. four female mountain gorillas （大猩猩）left home, abandoning not only their mate — a sick alpha silverback — but their infants （幼崽），which were barely old enough to Iced themselves. Most mammals abandoned by their mothers risk an early death, and researchers worried about the young gorillas.

Instead, the scientists got a heartwarming surprise. The young gorillas’ uncle, a male gorilla named Kubaha, began to take care of them. He let them sleep in his nest and climb all over him like a jungle gym.

Kubaha’s willingness to be a foster dad turns out to be surprisingly common in mountain gorillas. An analysis on mountain gorillas at the Gorilla Fund's Karisoke Research Center in Rwanda has revealed that when young mountain gorillas lose their mothers, they do not have a greater risk of dying or losing their place in the social hierarchy because the rest of the group buffers them from the loss. The social group has evolved to protect the infants from the ill effects of losing their mothers.

The researchers confirmed this assumption by focusing on data on 59 gorillas between the ages of 2 and 8 who lost their mothers or were orphaned （成为孤儿）before they were fully mature. They then compared the survival of these animals across their lifetimes with the survival of 139 nonorphaned gorillas. They also compared their reproductive success and social rank as adults — and tracked who the infants spent the most time with.

Not only were the orphaned and motherless gorillas at no greater risk of dying, they also suffered no long-term effect on their ability to reproduce or on their social rank, the team reports today in eLife.

The findings suggest such altruistic behavior is not unique to humans — and that dads play an important role in primate youngsters' lives, says Duke behavioral ecologist Susan Alberts, "Nonhuman primates often are really good dads," she says. 'This shows that paternal care goes very deep in our primate lineage."

4 . A robot with a sense of touch may one day feel “pain”, both its own physical pain and sympathy for the pain of its human companions. Such touchy-feely robots are still far off, but advances in robotic touch-sensing are bringing that possibility closer to reality.

Sensors set in soft, artificial skin that can detect both a gentle touch and a painful strike have been hooked up to a robot that can then signal emotions, Asada reported February 15 at the annual meeting of the American Association for the Advancement of Science. This artificial “pain nervous system,” as Asada calls it, may be a small building block for a machine that could ultimately experience pain. Such a feeling might also allow a robot to “sympathize” with a human companion’s suffering.

Asada, an engineer at Osaka University, and his colleagues have designed touch sensors that reliably pick up a range of touches. In a robot system named Affetto, a realistic looking child’s head, these touch and pain signals can be converted to emotional facial expressions.

A touch-sensitive, soft material, as opposed to a rigid metal surface, allows richer interactions between a machine and the world, says neuroscientist Kingson Man of the University of Southern California. Artificial skin “allows the possibility of engagement in truly intelligent ways”.

Such a system, Asada says, might ultimately lead to robots that can recognize the pain of others, a valuable skill for robots designed to help care for people in need, the elderly, for instance.

But there is an important distinction between a robot that responds in a predictable way to a painful strike and a robot that’s able to compute an internal feeling accurately, says Damasio, a neuroscientist also at the University of Southern California. A robot with sensors that can detect touch and pain is “along the lines of having a robot, for example, that smiles when you talk to it,” Damasio says. ‘It’s a device for communication of the machine to a human.” While that’s an interesting development, “it’s not the same thing” as a robot designed to compute some sort of internal experience, he says.

5 . When I was a kid, my sister and I would fight all the time over nearly everything. But as we grew older, our bond strengthened by sharing secrets, offering advice and trading clothes. Having a sister by my side while growing up taught me many lessons about the unique bond.

And now, thanks to an 8-year long study that’s making the rounds on the Internet again, science is confirming what I know is true. In the study, researchers discovered that having an older or younger sister can help ease the anxiety for kids between the ages of 10 and 14 years. They also found that people with sisters can “learn how to make up and to have control over their emotions again, which are skills that undoubtedly serve children well.

The revival of this study actually comes on the heels of another newer study, which shows that it’s not just the older kids and parents who influence and shape children as they grow. It turns out that younger siblings(兄弟姐妹) do too, and what’s more, they may also give their older siblings a greater chance of developing empathy (同情).

The Canadian study followed 452 pairs of siblings, all between a year-and-a-half and 4 years old. The researchers found that having a younger sibling increased the older sibling's level of empathy.

This research confirms that sisters are pretty amazing in making the world a much lovely place. As the mom of two boys, I often wonder what kinds of lessons they will learn from their younger sister. Perhaps they will be the same lessons I learned from mine that cooler heads always win. This study gives me hope that all those endless arguments between my kids may actually be laying the groundwork for conflict-settlement skills.