【推荐1】Safe Haven for Donkeys (驴) is providing sanctuary for rescued working donkeys in the El Saf region of Egypt.

First established in 2000 to help thousands of working donkeys in Israel, the charity Safe Haven for Donkeys has begun working with an Egyptian partner organization, the Bridge Foundation, to provide care to the donkeys in the El Saf region of Egypt.

Thousands of donkeys work in the brick kilns (窑) in Egypt, carrying 1.4 to 1.6 tonnes of bricks and moving at an intense pace to prevent unfired bricks from cracking in the heat. Due to lacking expert veterinary (兽医的) care, many of these animals are suffering intense pain from harness wounds, beatings, hoof issues and parasitic diseases spread by flies.

Now the cooperation between UK charity Safe Haven for Donkeys and Egyptian community development charity the Bridge Foundation is providing much-needed relief to these animals. The project includes a mobile veterinary clinic which treats common injuries and infections and trains the owners in how to best look after their donkeys.

In a press release, Andy Foxcroft, CEO of Safe Haven for Donkeys, said, “Through our work in Israel, we came to know of millions of working animals in Egypt without critical veterinary care. They were suffering a host of preventable and treatable painful conditions. Currently. no other animal welfare charity provides veterinary interventions in these particular kilns. So the skills of this charity are needed to treat sick and injured animals and provide training for owners and local professionals (vets and farriers). The first year is vital as we hope to make a lasting impact by reducing the unnecessary suffering of working animals. which sadly, is all too common a feature in the brick kilns.”

Safe Haven for Donkeys’ work, which helps about 10,000 animals a year, is made possible by charitable donations that fund the treatment and training they offer. You can make a donation on its website.

A report on some endangered wildlife in China

There has been some progress in saving endangered wildlife in China.

Animal
Problem	not enough food: loss of bamboo growing areas	disappeared from China	too much hunting in the 1950s
One habitat in China	Wolong Nature Reserve, Sichuan Province	Nanhaizi Milu Park, Beijing	Baishanzu National Natural Protection Zone, Zhejiang Province
Number before concern	nearly all disappeared	none	very few
Number after concern	about 1,600 after more than 50 reserves set up to protect bamboo areas	more than 2,500 after being brought back from UK	about 30－40 remain after being left in peace with no hunting

【推荐2】Fingerprints have been used to identify individuals for centuries. But now scientists may have finally figured out how those patterns are formed, according to a paper published in the journal Cell in February.

Previous studies have shown that fingerprints can be influenced by the shape and size of the blood vessels in the skin and how fast the different layers of skin grow. Denis Headon at the University of Edinburgh, UK, and his colleagues started their study from a new viewpoint: how genes affect fingerprint patterns. They identified the genes related to limb (肢体) development, which could serve as the groundwork for print formation, according to their work published in 2022.

However, many genes are not involved in the process. “The key is how they form,” Headon told Nature, a science journal. The team studied the ridges (脊) on mouse toes and human cells grown artificially.

They found two kinds of elements work against each other. A protein called WNT, which is important in skin development, promotes ridge formation. Another molecule (分子), called BMP, impedes the ridges. With the two elements “fighting” each other, they create the patterns of waves. The team also changed the timing and the location of the origins of the waves in experiments. They discovered that the waves would collide in different ways, which helps to create the diversity of print patterns.

Interestingly, the analysis of the fingerprint patterns supported the Turing reaction-diffusion system. It was first proposed by UK scientist Alan Turing in 1952 to describe a self-organizing system that creates patterns in nature, such as the feather patterns in birds and stripes on zebra. The researchers also built a computer model that can recreate print patterns by following the Turing system.

Based on the new study, it may be possible that the structures of human skin might be all generated by the same mechanism, Sarah Millar, a US biologist, told the website Science News. However, more studies on how the skin matures are needed to solve the mystery.

【推荐3】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.