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  • 海豹有耳朵吗,请问海报有耳朵吗?

    主页 > 和记问答 > 2023-12-13 15:29

      海豹有耳朵吗,请问海报有耳朵吗?

      据和记百科网站「梦钕煌」消息,近日,海豹有耳朵吗,请问海报有耳朵吗?引发热议,海报有耳朵吗同样引起许多争议,对此众网友各抒己见。但到底是怎么回事呢?和记百科为您解答。

      

    海豹有耳朵吗

     

      海豹有耳朵,不过外耳已退化,单从外观来看,海豹是没有耳廓的。但是海豹还有内耳,也称之为耳洞,若是仔细观察海豹,可以发现其头部的两侧,眼睛的后面各有一个耳洞,比较明显,那便是海豹的耳朵。

      海豹的体型特征:

      海豹是对鳍足亚目种海豹科动物的统称。海豹体粗圆呈纺锤形。全身披短毛,背部蓝灰色,腹部乳黄色,带有蓝黑色斑点。头近圆形,眼大而圆,无外耳廓,吻短而宽,上唇触须长而粗硬,呈念珠状。四肢均具5趾,趾间有蹼,形成鳍状肢,具锋利爪。后鳍肢大,向后延伸,尾短小而扁平。毛色随年龄变化,幼兽色深,成兽色浅。

      

    海报有耳朵吗

     

      答:有。海豹有耳朵。不过它们的外耳已经退化了,也就是说从外观来看,海豹是没有耳廓的。但这不能说海豹是没有耳朵的,因为海豹还有内耳,也就是耳洞。若是仔细观察海豹,可以发现它们头部的两侧,眼睛的后面各有一个耳洞,是比较明显的。这个耳洞是它们的内耳,也就是它们的耳朵。

      

      【英文介绍/For English】:

      

      Seals have ears, but the outer ears have degenerated. From the appearance alone, seals do not have auricles. But seals also have inner ears, also known as ear holes. If you look closely at the seals, you can find that there are ear holes on both sides of the head and behind the eyes. It is more obvious that they are the ears of the seal.

      Physical characteristics of seals:

      Seal is the collective name for the pinniped species of seals. The seal body is thick and fusiform. Body covered with short hair, bluish-gray back, creamy yellow belly, with blue-black spots. The head is nearly round, the eyes are large and round, there is no outer auricle, the snout is short and wide, and the tentacles of the upper lip are long and thick, in the shape of a rosary. All limbs have 5 toes, with webs between the toes, forming flippers with sharp claws. The hind flippers are large, extending backward, and the tail is short and flat. Coat color varies with age, darker in cubs and lighter in adults.

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