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Anonymous
Anonymous asked in 科學其他:科學 · 2 decades ago

海豚媽媽懷孕期間多久?以什麼發出聲音來聯絡?

海豚媽媽懷孕期間多久?以什麼發出聲音來聯絡?

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  • Anonymous
    2 decades ago
    Favorite Answer

    海豚媽媽懷孕期間多久?瓶鼻海豚是海豚科的代表動物,以樽鼻海豚為例,雄性的成熟期約在9-13歲,而雌性則在5-12歲。每年春、夏季交配,懷孕10~12個月後產下小海豚。參考資料:http://studentweb.bhes.tpc.edu.tw/91s/s860746/www/... lip),經過頭部前方一大塊的脂肪(額隆melon)將聲波發出,聲波打到目標物後反射回來的波經由充滿脂肪的下顎骨接收,傳遞至耳骨。海豚在發聲的時候可以控制猴唇及額隆,用來決定聲音的頻率及發射的範圍。

  • 7 years ago

    到下面的網址看看吧

    ▶▶http://qaz331.pixnet.net/blog

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