1 . Chinatown, lying in Downtown L. A．near the city’s cultural center, is one of L. A.’s most popular tourist destinations. What are you waiting for? Go to explore this amazing place right now!

In Chinatown, a mix of new and old restaurants meets everyone’s needs. Early birds should stop by Philippe The Original, a local restaurant that’s beloved for French Dip sandwiches, but also serves a good classic American breakfast. Night owls will want to head to Full House Seafood on Hill Street, which is open late into the night.

Food is far from the only reason to visit Chinatown. People interested in history will want to start their trip at the Chinese American Museum (CAM), lying just outside of Chinatown at El Pueblo de Los Angeles Historical Monument. The museum is housed in the Garnier Building, the oldest surviving Chinese building in a major area of California.

A big statue of Bruce Lee has become a must-photograph site in Chinatown’s Central Plaza. The late martial arts star once had a studio in Chinatown at 628 W. College St.

Nearby is Dragon Chasing Pearl, which was originally painted on the wall in 1941 by Tyrus Wong. The artist, who passed away in December 2016 at age 106, was famous for his work in films, particularly as the lead artist on Disney’s Bambi.

Chinatown hosts many party-style events throughout the year, like the music and food truck Chinatown Summer Nights, the yearly Moon Festival and the biggest one, Chinese New Year! It’s really a good place to experience L. A.’s cultural diversity.

Giant panda Ya Ya arrived at Shanghai Pudong International Airport on Thursday from Memphis, Tennessee.

Ya Ya returned     1     China from the United States after a 20-year loan for a joint research and conservation project, according to the National Forestry and Grassland Administration.

In December, the Memphis Zoo     2    (announce) that it would return Ya Ya, who arrived in the US in 2003.

The zoo hosted a farewell party for the 23-year-old female panda on April 8, with hundreds of people     3    (attend) the event, Xinhua News Agency reported.

In January, Chinese netizens showed their concern for Ya Ya, who appeared somewhat malnourished (营养不良) in pictures and videos     4    (post).

In     5    (respond), the Chinese Association of Zoological Gardens said in     6     announcement that the zoo had taken good care of her, and there is no indication that she was neglected, based on videos of her and the results of     7    (month) health reports and annual physical examinations.

In 2006, Ya Ya began to shed fur, a condition     8     worsened in 2014.     9    (expert) at the Memphis Zoo and in China tried various forms of treatment but were     10    (able) to resolve the problem, the association said.

7 . Imagine being able to pop to your local park and pick some tomatoes, potatoes or even bananas to take home for dinner. Sounds too good to be true, right? For residents (居民) of Andernach, German, it’s not just a dream — it’s their reality.

In 2010, Andernach began its edible (可食用的) city project that hadn’t been carried out before, planting 101 varieties of tomatoes in public green spaces around the city center. Its 30,000 residents are free to help themselves to whatever grows, as are any other visitors.  The town’s motto of sorts is “Picking is encouraged — help yourself!” Every year a new type of plant is highlighted. In 2011, 100 types of beans were planted, while 2012 saw the introduction of 20 onion varieties. And it has become the phenomenon of the city.

It’s a community effort, as local citizens are encouraged to help plant and maintain the gardens. This offers an opportunity to socialize as well as to learn about planting, cultivating and harvesting food.

An Andernach resident spoke to DW,“I often drop by to pick some herbs that I’m missing at home. Everything is easily accessible. There aren’t any fences. You just take what you need. The only thing is that you have to be quick once the fruits are ripe or they’ll all be gone!”

Andernach may have been the first in German, but it isn’t the only edible city. It’s part of the Edible Cities Network, a project funded by European Union to connect green urban foot initiatives (方案) around the world. Other cities include Carthage in Tunisia, Havana in Cuba and Sempeter-Vrtojba in Slovenia. In February 2022, the first Edible Cities Network Conference took place. Dr Ina Saumel, principal investigator of the Edible Cities Network, called it “a unique opportunity to invite researchers of edible city solutions and practitioners all together.”

Ultimately, the Edible Cities Network aims to give people “greener, more edible and, above all, more livable cities.” It is a response to the pressures of global climate change, and a significant cause full of hope.

10 . In habitats across the planet, animals periodically drop everything to walk, fly or swim to a new place. Wildlife such as whales and geese learn migration paths by following their parents. Others, including small songbirds, gain the distance and direction of their migration within their genetic code. And some animals use a combination of genetics and culture to guide their migration.

Another group of migrators does not quite fit either model, and researchers have only recently started to figure out how they find their way. Take the Cory’s shearwater, an oceangoing sea bird that migrates over the Atlantic every year. The young do not migrate with their parents, so culture cannot explain their journeys. And the exact paths vary wildly from individual to individual, making genetics equally unlikely.

Cory’s shearwaters are long-lived, rarely producing young successfully before age nine. This leaves an opening for learning and practice to develop their migration patterns. Researchers call this the “exploration-refinement”, and until now it has been hypothetical (假设的) because of difficulties in tracking migratory animals’ movements.

But a team of researchers has done that by attaching small geolocators to more than 150 of the birds aged four to nine. They found that younger birds traveled longer distances, for longer periods, and had more diverse paths than older birds. “We finally have evidence of the ‘exploration-refinement’ for migratory birds,” says Letizia Campioni, who led the study. Younger Cory’s shearwaters are able to fly just as fast as the adults—but they do not, suggesting that the young do more exploring, which gradually fades as they mature and settle into a preferred course.

Although it may seem less efficient than other strategies, “exploration refinement could be beneficial to birds and other organisms in a rapidly changing world due to unpredictable man-made changes,” says Barbara Frei. “It might be safer to repeat a behavior that was recently successful than to rely on patterns that were perfected long ago but might no longer be safe.”