Read the text below. For questions choose the correct answer.
Mother Bears Aren’t Afraid of Tourists
Noisy ecotourists may unexpectedly brown bears in the wild. Human visitors to remote natural areas often with animal behaviour, sometimes with disastrous results. However, researchers studying brown bears in Canada found that while adult males the tourists, the presence of people didn’t bother mothers and cubs, who seemed to use the noise of buses as a that dangerous males had left the area. Even when males had left the area altogether, females didn’t appear until the tourists did. Mother bears evidently take advantage of the opportunity to dine without the of males attacking their cubs.
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