题目选项分析

The results of two recent unrelated studies support the idea that dolphins may share certain cognitive abilities with humans and great apes; the studies indicate dolphins' ability to recognize themselves in mirrors-an ability that is often considered as a sign of self-awareness-and of spontaneously grasping the mood or intention of humans.

The results of two recent unrelated studies support the idea that dolphins may share certain cognitive abilities with humans and great apes; the studies indicate that dolphins are capable of recognizing themselves in mirrors-an ability that is often considered a sign of self-awareness-and of spontaneously grasping the mood or intention of humans.