In some of the groups, a bold fish and a shy fish acted as leaders, while another shy fish followed.

在有些组中，一只大胆的鱼和一只害羞的鱼充当领导者，而另一只害羞的鱼则跟随它们。

What they found is that shy fish were more likely to emerge from under cover when an equally wary fellow was already out there.

研究人员得出的结论是，当同样谨慎的鱼出现时，害羞的鱼更可能从遮蔽物中出来。