Passage 1 For millions of years, mating frogs might have been making some interesting mistakes. New research indicates that male frogs sometimes attempt to mate with inappropriate objects, such as a different species, a turtle, or even a dead fish. And it seems this behavior is not a recent development but an ancient feature of frog evolution. Francois Brischoux from the University of La Rochelle in France and his colleague, Lea Lormain - Solignon, collected 280 records of misguided frog matings from various sources across different frog species. They then used probability analysis to calculate the likelihood of this behavior. Their findings showed a surprisingly high chance of such mismatches, especially in situations where multiple frog species share the same breeding ground and there's intense competition with rivals to reproduce. The earliest frog species, which lived around 220 million years ago, were likely to have made these kinds of mistaken matings too. “Our results suggest that the reproductive strategies of frogs are more complex than previously thought,” says Brischoux. “This behavior could be advantageous for males to be attracted to and thus clasp any female - looking object in order to increase their chances of reproduction.” Studies like this further support the idea that frogs have a diverse range of reproductive behaviors. Andrew Biewener from the University of St. Louis, Missouri, agrees that it is possible for frogs to make such mistakes. “This behavior could have occurred in all amphibians, including salamanders and caecilians,” he says. And as habitats are damaged by human activities, environmental noise, and other factors, the frequency of these reproductive dead - end mistakes may even increase. What did Francois Brischoux and his colleague do in the research A. They observed the mating process of frogs in the wild. B. They analyzed records of misguided frog matings. C. They studied the evolution of different frog species. D. They compared the mating behaviors of various animals. Why do male frogs sometimes mate with inappropriate objects according to the research A. Because they can't tell the difference between species. B. Because they want to compete with other males. C. Because it can increase their chances of reproduction. D. Because they are attracted by the appearance of these objects. What can we infer from the passage A. The mating mistakes of frogs are a newly - discovered phenomenon. B. Only frogs among amphibians make mating mistakes. C. Human activities have no impact on frogs' mating behaviors. D. The frequency of frogs' wrong mating may rise in the future. What is the main idea of the passage A. The evolution of frogs' mating behaviors. B. The reasons for frogs' inappropriate mating. C. New findings about frogs' attempts to mate with other species. D. The diversity of frogs' reproductive strategies. 答案 B 解析：根据文章第二段 “Francois Brischoux from the University of La Rochelle in France and his co ... ...
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