When you look in the mirror, you see yourself. That puts you in the company of animals like dolphins

When you look in the mirror, you see yourself. That puts you in the company of animals like dolphins, elephants and chimpanzees. The mirror test is often used as a way of measuring whether animals have self-awareness. And an animal that is aware of itself has a high level of intelligence. Now, a species of fish - the cleaner wrasse - has also spotted its reflection.
Alex Jordan, a biologist at the Max Planck Institute in Germany, is one of the researchers of the study on cleaner wrasse consciousness. He and his team conducted many tests that show the fish does seem to recognize its reflection - when the researchers added a colored mark to its body, the fish would even try to remove the mark upon catching sight of it in the mirror. It seems to indicate the clever fish species has some sense of self or individuality.
But Jordan said, “I’m the last to say that the cleaner wrasse is as smart as chimpanzees.” Instead, he believes that the measure scientists have used for nearly 50 years is imperfect.
One problem with the test, for example, is that it uses vision to measure self-awareness. Yet not all animals rely on sight to recognize themselves. It may well be that a bat, for example, which depends on sonar (声波定位) to get around, is self-conscious. Elephants, while able to pass the mirror test, rely more heavily on smell than on sight.
Consciousness in humans or animals is not easy to measure or understand. Philosophers and scientists have long wrestled with the questions of how a sense of self is assessed, and how it relates to physical processes. Jordan believes the cleaner wrasse is self-cognizant (自我知晓的), but not the same extent (程度) as a human. This means scientists need to reconsider whether some concepts centered on humans can be used in understanding animals.
24. The study on the cleaner wrasse made Alex Jordan    .
A. doubt whether the mirror test is reliable
B. discover the secret about the fish’s sight
C. develop a better method to replace the mirror test
D. believe the cleaner wrasse is as smart as chimpanzees
25. Which of the following can replace the underlined part “wrestled with” ?
A. Presented with. B. Ended with.
C. Agreed with. D. Struggled with.
26. What can we learn from the text?
A. It is relatively easy to test animals' consciousness.
B. Some concepts for humans can’t be applied to animals.
C. Animals rely on at least two senses to get to know themselves.
D. More mirror tests are needed to prove the cleaner wrasse is self-aware.
【答案】