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In the lecture, the professor casts doubt on the reading passage's idea that the zebras' stripe has defensive benefits from unique stripy coloration. The professor asserts that zebras actually do not have the defensive ability with their own stripy coloration. To begin with, the professor argues that predators of zebras, expecially lions, do not be rub off on the optical confusion. According to the reading passage, it lead to underestimate to predators so looks bigger and far from predators' position. In opposition to the argument, the professor says that lions which is zebras' well-known predator species usually make a target which is sick or young zebras and chased to make the target exhausted. On top of that, the professor claims that zebras' characteristic which they are herd animals is not connected with the predator's targeting. The reading passage describes how zebras' stripe make confusion by blending with other zebras. On the contrary this, the professor states that lions pick up the target for prey very weak and especially single one so it does not make sense about the blending theory. Lastly, The professor rebuts the reading's point that zebras stripe provide vital camouflage protection. The professor points out that zebras are usually good targets for prey because they are easily appeared by predators and give a good view and approaching chance to the predator which looks for prey even though they use glasses as a camouflage tool. |