▶ Topic : 항상 검토할 시간이 1분 정도밖에 안 남아서 오타도 많은데, 글자수는 넘치네요ㅠㅠ 어떻게 하면 좋을까요...ㅜㅜ 첨삭감사합니다! 복받으실 거에요!! :) Whales are often found dead or dying on beaches, and this is considered a perfectly natural occurence. However, those are usually inividual animals. Sometimes large groups are found beached, and it is unclear why they beach themselves. Many theories have been proosed to explain this unusual behavior. One possible explanation is that beaching behavior is caused by illness. Whales are social animals that live in groups called pods, and they could infect each other. There are many micorbes that can infect the central nervous system, causing disorientation and unusual behavior. If these sick whales swin too close to the shore, they may becoe trpped when the tide goes out. A second natural explanation involves earthquakes. When an earthquake occurs, it releases some if its energy in the form of electromagnetic waves. Like other animals, wales can use the Earth's electromagnetic field to navigate. The waves from a quake could confuse or panic them into going towards land. A third explanation is sonar equipment used by naval vessels. Sonr is a navigation system that uses ound to map out obstacles in the ocean. Whales also navigate and locate animals around them using sound in a similar manner. When multiple ships use sonar, large groups of whales are often found beached on nearby coastlines. Many people believ that mass beaching has become more common since the invention of sonar. |