1 . Since there was usually not enough time for a bystander pig to become involved in the heat of a conflict, though this did occur, Dr Norscia looked at what happened in the three minutes immediately following a fight. Sometimes, he found, the fighters reconciled with each other on their own. The more distantly related the fighters were, the more frequently this happened. Dr Norscia guessed that relations between close relatives are more secure to start with, so rebuilding friendly relations rapidly is less necessary for them.

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2 . Bennett, 57, held on through 60 tomorrows, far longer than any previous patient who’d received a heart from another species. His remarkable run offered new hope that such procedures, known as xenotransplantation (异种移植), could help relieve the shortage of replacement organs, saving thousands of lives each year.

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3 . If the test is already set, the best way to prepare for it is with a battery of activities that most closely look like the test itself. And so as the Big Standardized Tests have spread, publishers have cranked out varieties of coaching workbooks that are all collections of short excerpts accompanied by a set of multiple choice questions. Instead of teaching students how to read a whole book, we teach them how to take a standardized test.

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4 . “Let’s take a break,” partway through the meeting, my boss stood, saying. “I need more coffee.” I picked up my empty cup. “I do, too,” I said, and handed it to him across the table. “Thanks,” I added, looking at him expectantly. The boss was staggered for a moment, and then took the cup from me.

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5 . But Oreos don’t attract you with taste alone; scents have a huge impact on the eating experience. When you bite into an Oreo, chemicals in the cookie release odor ants into the air inside your mouth. These scents flow to your nasal cavity (鼻腔), where they interact with smell receptors (感受器) and enter your brain’s decoding (解码) process. Your brain is likely to find those smells delightful, says Charles Spence, a professor of experimental psychology at the UK’s University of Oxford. Spence says chocolate and vanilla are two of the world’s most liked smells.

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6 . Using first-of-their-kind observations from the James Webb Space Telescope. a University of Minnesota Twin Cities-led team looked more than 13 billion years into the past to discover a unique, minuscule galaxy cluster (星系团) that generated new stars at an extremely high rate for its size. The galaxy is one of the smallest ever discovered at this distance —around 500 million years after the Big Bang — and could help astronomers learn more about galaxies that were present shortly after the universe came into existence.

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7 . As soon as I started pedaling again, my pants got caught in the chain, and I fell flat on my face and hit my nose. Since that happened t my granddad decided to call it a day and try again the next morning. The next morning I woke up bright and early, and was very eager to try to ride my bike. My nose felt better, so I wasn’t that afraid of falling anymore.

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8 . When you need a job very much, you may end up taking

Of course, you may seek tasks and responsibilities that force you to learn something new or to work harder. “You may be operating on autopilot（习惯性地）right now, but chances are that people above you are stressed,” Sarah Hathorn says. “ Take things off your boss’s plate and let him know which projects or tasks you want to learn more about.”

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9 . At the end of each day, the participants showed high activity in a brain area called the midbrain. The scientists were interested in two, small areas within it. Both areas produce dopamine, a chemical that is important in craving and rewards. The two areas activated when hungry participants saw pictures of tasty pizza or juicy hamburgers. After the volunteers had been isolated, those brain areas became active when they saw social activities they missed. It might be playing sports or chatting with friends.

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10 . Regulatory limits for how much PFAS food packaging should contain can vary greatly. For instance, a new law in California set the limit at less than 100 ppm. “Compared to America, Denmark sets a much lower regulatory limit of 20 ppm with great success,” said Xenia Trier, an expert at the European Environment Agency. “It does work to set limits and enforce them. PFAS do migrate from the paper into the food. Even though it was not 100%, we still saw considerable transmission. In general, transmission from packaging to food is increased as the temperature of the food rises. It is the same with the time spent in wrapping materials.” Trier told NBS, one of the major American mass-media companies.