▶ Your Answer :
According to the reading, there are three probable reasons why whales are stranded. However, the lecturer argues that these reasons have several problems. First, the reading says that wind patterns can affect the movement of whales from a shallow sea to a deep sea. This is because whale’s food such as fish and plankton move to the direction of the wind towards land, and whales follow that direction too. As a result, whales are stranded on the beach. In contrast, the lecturer contends that this reason does not make sense. The reason is that it can not explain particular space where various direction of wind blow. For example, although the wind flow toward the direction of sea, there are many whales are stranded. Next, the reading talks about whale illnesses. To be specific, sick whales do not have enough power to swim back into the deep water. Furthermore, there were some stranded whales that already had died before they were floated to the shore. It means that some fatal whale illnesses exist. On the other hands, the lecturer does not think that it is unreliable. Since, not only unhealthy whales have been stranded but also healthy ones. In addition, whales are able to swim back in the sea using own power when they are pushed. Finally, the reading material claims that it have happened because of the geographic factors. Sonar beam, which can be a tool of whale for detecting shape of geographic features, do not function well sometimes. The reason is that it is difficult for whales to catch badly reflected beams due to a shallow water level. Otherwise, the lecturer suggests that it has a problem. Scientist can not explain why some whales were stranded although all ones use same detecting system. What’s more, specific whales living in shallow water rarely are stranded. |