题目选项分析

Surprisingly, they observed no significant effect on songbird nesting success.

This may be due to several factors.

Neither raccoons nor striped skunks consume ground squirrels, which are important predators of songbird nests.

第一句和第三句之间的关系是：

Surprisingly, they observed no significant effect on songbird nesting success.

This may be due to several factors.

Neither raccoons nor striped skunks consume ground squirrels, which are important predators of songbird nests.

第一句和第三句之间的关系是：