The Mirror Test

1. English Overview

This article explains the mirror test, a scientific method used to study self-awareness in humans and animals. Very young children usually cannot recognize themselves in a mirror until around 18 months of age, so mirror self-recognition is treated as an important sign of consciousness. Scientists first used the mirror test with great apes, which are close relatives of humans. More recently, elephants, dolphins, and even cleaner fish have shown signs of self-recognition. The article suggests that some animals may have more self-awareness than scientists once believed.

2. 中文概览

这篇文章介绍了“镜子测试”，也就是科学家用来研究人类和动物自我意识的一种方法。很小的孩子通常要到大约 18 个月时才能认出镜子里的自己，因此镜中自我识别被看作自我意识和意识的重要表现。科学家最早发现类人猿能够通过镜子测试，后来大象、海豚，甚至清洁鱼也表现出自我识别迹象。文章由此说明，一些动物可能拥有比过去认为的更高程度的自我意识。

3. Key Background Knowledge

The mirror test: an experiment that checks whether an animal can recognize its reflection as itself. 镜子测试：一种实验，用来判断动物是否能把镜中的影像识别为自己。

Self-awareness: the ability to understand that you exist as an individual self. 自我意识：理解自己作为独立个体存在的能力。

Consciousness: the state of being aware of yourself, your thoughts, and the world around you. 意识：能够感知自己、自己的想法以及周围世界的状态。

Self-recognition: the ability to identify oneself, especially in a mirror or image. 自我识别：识别出自己，尤其是在镜子或图像中认出自己的能力。

Great apes: a group of highly intelligent primates closely related to humans, such as chimpanzees and gorillas. 类人猿：与人类亲缘关系较近、智力较高的灵长类动物，例如黑猩猩和大猩猩。

Cleaner fish: a type of fish known for removing parasites from other fish, and in this article, for showing possible mirror self-recognition. 清洁鱼：一种会为其他鱼清除寄生虫的鱼；在本文中，它表现出了可能的镜中自我识别能力。

4. 文章思维导图

中心主题：The Mirror Test: what mirror self-recognition reveals about animal self-awareness

Paragraph 1｜段落主旨：Mirror self-recognition is an important sign of self-awareness.

主要细节：Very young children usually cannot recognize themselves in a mirror.

主要细节：Children typically achieve this ability around 18 months of age.

主要细节：Recognizing oneself in a mirror is considered a key component of self-awareness and consciousness.

主要细节：The paragraph introduces the question of whether animals can also show this ability.

Paragraph 2｜段落主旨：Scientists used the mirror test to show that great apes can recognize themselves.

主要细节：Scientists put a colored mark on an ape's body.

主要细节：The ape then saw its reflection in a mirror.

主要细节：If the ape tried to remove the mark from its own body, scientists concluded that it recognized the reflection as itself.

Paragraph 3｜段落主旨：Recent discoveries suggest that self-recognition may exist in more animals than previously believed.

主要细节：Elephants and dolphins have shown signs of self-recognition.

主要细节：These animals, like apes, are highly intelligent.

主要细节：Cleaner fish tried to scrape a mark off their bodies after seeing themselves in a mirror.

主要细节：This suggests that even less intelligent animals may possess more self-awareness than scientists once suspected.

5. Key Vocabulary