什么海洋生物已灭绝英语(海洋已经灭绝物种)

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Introduction

With the constant changes in the environment and human activities, many marine species have been endangered or even extinct. In this article, we will discuss some of the extinct marine species that once roamed our oceans.

Steller"s Sea Cow

Steller"s Sea Cow was a large mammal that lived in the North Pacific Ocean until it was hunted to extinction in 1768. It could grow up to 30 feet long and weigh over 11,000 pounds. The species was named after Georg Wilhelm Steller, a German naturalist who was part of the crew that discovered the animal.

Dodo Bird

The Dodo bird is often associated with extinction, but what many people don"t know is that it was also found in coastal areas and on small islands. The bird lived on Mauritius Island until it became extinct around 1681 due to hunting and habitat destruction by humans and other introduced animals such as pigs and rats.

Giant Clam

The Giant Clam is an example of marine species that have become endangered due to human activities such as overfishing and pollution. The shells of these clams can grow up to four feet long and weigh over 500 pounds. They are found in shallow coral reefs across Southeast Asia, but their populations have declined significantly in recent years.

Conclusion

The extinction of marine species has significant implications for our planet"s ecosystem. As humans continue to impact our oceans through overfishing, pollution, climate change, and other activities, more species may be lost forever. It is crucial that we take steps to protect these animals before it"s too late.