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lmaomao

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  1. The Einstein of the fish world may be the nine-spined stickleback, suggests new research that determined this common European fish possesses an unusually sophisticated capacity for learning not yet documented in any other animal, aside from humans. The unassuming, small-headed fish proves tiny brains can yield "surprising cognitive abilities," according to project leader Jeremy Kendal, whose team discovered the stickleback can compare the behavior of other fish with its own experiences in order to make better choices. This learning method, known as "hill-climbing," is necessary for cumulative culture and was thought to be unique to humans. archlord power leveling "Cases such as nut-cracking in chimpanzees, or tool use in New Caledonian crows, are potentially consistent with such a strategy, but the strategy has yet to be shown unambiguously (in these other animals)," Kendal, a Durham University anthropologist, told Discovery News. For the study, published in the journal Behavioral Ecology, he and his colleagues caught 270 nine-spined sticklebacks in Leicester, England. The fish were organized into experimental groups. These fish groups then took turns as either free swimmers in a tank with worm-yielding feeders at the end, or as "learners" in a transparent, partitioned-off area of the specially designed tank. aoc power leveling One of the two feeders released more worms than the other. The fish quickly gravitated to this "rich feeder." When these fish then went into the observation semi-circle portion of the tank, the researchers swapped the feeders. The new free swimmers, as before, made a beeline for the feeder with a more plentiful worm reward. When the observation fish group was released back into the part of the tank with the feeders, 75 percent were "clever" enough to know from watching the other sticklebacks that the feeders had been switched, so they didn't just rely upon their own experience with the feeders. archlord gold Additional research conducted by the same team of scientists found that the likelihood of copying the behavior of another increased with the rate at which this other individual fed. The fish aren't therefore just mindlessly copying each other. They are instead "being selective about when and who they copy." buy archlord gold Kendal thinks the nine-spined stickleback might have been "forced to learn" this rather complex strategy because the species is scrawnier than many other fish, with an anatomy that doesn't offer significant protection from predators. Instead of risking being eaten while searching for food, it benefits the fish to find out exactly where the best sources are at ahead of time and to go directly to them. archlord money Health Top Tips Nutrition Love Lifestyle Happiness Weight Loss "It is possible that, rather than evolve to become more sturdy, it is less costly for the nine-spines to evolve the capacity to exploit foraging information provided by observing others," he explained, mentioning that tougher three-spined sticklebacks don't seem to have such a brainy solution to foraging challenges. Culum Brown, a University of Edinburgh researcher and editor of the book "Fish Cognition and Behavior," told Discovery News, the study "shows that fishes are using a mixture of their own knowledge and weighing it up against cultural information." "In many ways," Brown said, "fish are just as smart as other animals." While fish seem to exhibit frequent flashes of mental brilliance, the stickleback's hill-climbing strategy has yet to result in more human-like, high-tech capabilities, probably because fish habitats are so unstable. "A massive constraint for the fish is that the environment can change rapidly, so information about a good foraging site can become redundant after a short time," Kendal said. "This resets the cumulative process and the fish have to start again acquiring new information." "This means we might not expect any spectacular cumulative cultural evolution like seen in humans," he said, "but watch this space. We know so little and are constantly surprised about what they can do!"
  2. With the development of the time and the society, china’s higher education system is becoming more and more flawless, and China has benefited much from this. But, we can’t deny, there are also many problems still exist in china’s higher education. In china, the higher education over focus on the knowledge itself, but ignore to cultivate students’ abilities, qualities, and even more important, the sense of responsibility to the society. Maybe this is because Chinese people reverence knowledge, love knowledge more than other things. This is not bad, but it must be under the precondition of not ignoring other things. We must admit, in the past ten years, with the development of china’s higher education system, this phenomenon has changed a lot, but this is still a very common problem in today’s higher education. In my mind, the aim of university education should not confine its views in knowledge teaching, but it should help the students to increase their abilities, qualities, and the sense of responsibility to the society. That’s to say, it is training the good members of society. wow power leveling In the article “The Aim of a University Education” the famous English educationist John Henry Newman expresses his opinion about the higher education: “it aims at raising the intellectual tone of society, at cultivating the public mind, at purifying the national taste ……and refining the intercourse of private life.” “It prepare him to fill any post with credit, and to master any subject with facility.” Here, John Henry Newman raises the abilities, qualities, and the sense of responsibility to the society to more important position. In the reality, after graduation the students will become the average members of the society. At that time, the importance of their abilities, qualities, and the sense of responsibility to the society will be all shown. No matter how much knowledge one owns, if he can’t adapt the society, and contribute to the society, he will be washed out by the society. It is a waste of education recourses. world of warcraft power leveling In our life, we can see a lot of examples. Every year, we can hear news that many university students or the persons who have higher academic qualification kill themselves. They have accepted the high education and have a lot of knowledge, but their qualities and the sense of responsibility to the society may not reach the level which they should have. At the same time, many university campuses in China are so dirty that makes people feel they are not in the campus but in the street outside, and we can see many students throw rubbish to everywhere they want. This may indicate there is something wrong with students’ qualities. aoc power leveling There must be a lot of other problems exist in china’s higher education, for example, the high tuition fee, the improper system, the ruleless manage, and so on. But because china’s higher education is in the process of change from “elite education” to “popular education”, the cultivation of students’ abilities, qualities, and even more important, the sense of responsibility to the society is becoming more and more important. This will affect china’s future society in a large extent. So we must do our best, and overcome all the difficulties to solve this problem firstly.
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