科学家发现，比起那些和长尾雄性燕子在一起的雌性燕子，跟毛少短尾的雄性燕子在一起的雌性燕子更容易出现不忠行为。

Scientists have found that females mated with lesser, shorter-tailed males are much more likely to be unfaithful than females mated with more attractive specimens.

youdao

科学家发现，比起那些和长尾雄性燕子在一起的雌性燕子，跟毛少短尾的雄性燕子在一起的雌性燕子更容易出现不忠行为。

Scientists have found that females mated with lesser, shorter-tailed males are much more likely to be unfaithful than females mated with more attractive specimens.

youdao