时隔多年,这些动物物种再次被发现!

 时隔多年,这些动物物种再次被发现!

Michael Johnson

自地球上出现生命以来,物种灭绝是一个自然过程。 在我们星球的历史上,一些物种灭绝,一些新物种出现。

为了评估一个物种的灭绝率,科学家们会考虑一些因素,如繁殖成虫的数量、栖息地的退化及其地理分布。

在过去,一个物种如果超过50年没有任何记录,就被认为已经灭绝。 如今,要宣布一个物种灭绝,必须确定该物种的最后一个个体。

物种灭绝导致生态系统生态失衡。

尽管在某些情况下,过去被认为已经灭绝的物种很少能再次被发现,因此在宣布物种灭绝时出现了错误,但在逃脱灭绝的物种中,有甲壳类、昆虫、鱼类、鸟类和哺乳动物。

在重新出现的物种名单中,最令人印象深刻的是腔棘鱼。 这种在7000多万年前宣布灭绝的鱼类于1938年在非洲南部被重新发现。

榜上有名的两种无脊椎动物是巨型华莱士蜂和塞拉蟹。 前者于1981年被宣布灭绝,直到2019年才再次被发现,而6只塞拉蟹是在2021年被发现的。 这些动物自1955年以来就被宣布灭绝。

Tarsiers侏儒灵长类在上世纪20年代被认为已经灭绝,但2008年在印度尼西亚被科学家重新发现。

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象鼩(Somali sengi)最后一次出现是在1970年,在2019年被重新发现之前一直被认为已经灭绝。

1946年,一种罕见的蜂鸟物种--剑齿蜂鸟濒临灭绝,但在2000年代之前又被重新发现。

塔卡赫鸟原产于新西兰,1898年因被猎杀而被认为已经灭绝,然而50年后,在默奇森山脉(新西兰)发现了一个新的种群。

最后,2013年在马达加斯加岛海岸发现了一群虎鲸。 2003年首次发现这种动物。

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Michael Johnson

Jeremy Cruz is a seasoned financial expert with a deep understanding of the Brazilian and global markets. With over two decades of experience in the industry, Jeremy has an impressive track record of analyzing market trends and providing valuable insights to investors and professionals alike.After earning his Master's degree in Finance from a reputable university, Jeremy embarked on a successful career in investment banking, where he honed his skills in analyzing complex financial data and developing investment strategies. His innate ability to forecast market movements and identify lucrative opportunities led him to be recognized as a trusted advisor among his peers.With a passion for sharing his knowledge and expertise, Jeremy started his blog, Stay up to date with all the information about the Brazilian and global financial markets, to provide readers with up-to-date and insightful content. Through his blog, he aims to empower readers with the information they need to make informed financial decisions.Jeremy's expertise extends beyond blogging. He has been invited as a guest speaker at numerous industry conferences and seminars where he shares his investment strategies and insights. The combination of his practical experience and technical expertise makes him a sought-after speaker among investment professionals and aspiring investors.In addition to his work in thefinance industry, Jeremy is an avid traveler with a keen interest in exploring diverse cultures. This global perspective allows him to understand the interconnectedness of the financial markets and provide unique insights on how global events impact investment opportunities.Whether you are an experienced investor or someone looking to understand the complexities of the financial markets, Jeremy Cruz's blog provides a wealth of knowledge and invaluable advice. Stay tuned to his blog to gain a thorough understanding of the Brazilian and global financial markets and stay one step ahead in your financial journey.