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伪虎鲸

增加 360 位元組, 4 年前
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[[File:伪虎鲸.jpg|thumb|right| [http://img.mp.itc.cn/upload/20160317/37c92519cd464da0afeae08eafbcb997_th.jpg 原图链接] [https://www.sohu.com/a/63907783_383631 图片来源于搜狐网] ]] '''伪虎鲸'''生活于世界各地暖温带至热带海域,也常出现在 [[ 台湾 ]] 东部外海一带。伪虎鲸又名黑鯃、拟虎鲸、伪领航鲸、拟逆戟鲸,为 [[ 海豚 ]] 科伪虎鲸属下唯一一种。该物种的模式产地在 [[ 英格兰 ]] 。伪虎鲸主要以乌贼类为食,也吃鱼、小鲨鱼等。
界: 动物界 Animalia
伪虎鲸喜群居,几十、几百甚至几千头一群,同伴间眷恋性很强,很少单独活动。也会攻击大翅鲸仔鲸。在伪虎鲸群体里有时会分成较小的组或家族,平均18头为一组(通常为10至30)。 家族型包括所有年龄段的雄性和雌性伪虎鲸。
伪虎鲸是快速、活跃的泳者。当它浮升时,经常将整个头部与躯体的大部分扬升出水;有时甚至连胸鳍都看得见。浮现时,经常张开大口,露出成排的牙齿。有时会突然停止前进,或急转弯,尤其是在猎食时。会接近船只以进行探察,会船首乘浪或船尾乘浪。经常跃身击浪,通常会转体以侧身击水,造成几乎与其体型同样大的水花。兴奋时,会优雅地跃离水面,并鲸尾击浪。比较容易搁浅,有时数量相当惊人(曾有一次800多只的罕见案例)。<ref>[http://www.iltaw.com/animal/1183 伪虎鲸False killer whale] </ref>
==地理分布==
The false killer whale (Pseudorca crassidens) is a cetacean, and the third-largest member of the oceanic dolphin family (Delphinidae). It lives in temperate and tropical waters throughout the world. As its name implies, the false killer whale shares characteristics, such as appearance, with the more widely known killer whale. Like the killer whale, the false killer whale attacks and kills other cetaceans, but the two species do not belong to the same genus.
The false killer whale has not been extensively studied in the wild; much of the data about it have been derived by examining stranded animals.
 
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==参考文献==
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