你即將離開本站

並前往https://www.washingtonpost.com/news/speaking-of-science/wp/2018/05/07/bird-migration-explained-at-last-its-all-about-energy-efficiency/

Bird migration explained at last: It's all about energy efficiency

The seasonal migration of so many birds is an ecological puzzle. There are about 10,600 known species of birds, and most don't migrate. But ...

確定！ 回上一頁

查詢 「Birds migration」的人也找了：

  1. Migratory birds
    2.
  2. Bird migration
    3.
  3. Animal migration
    4.
  4. migratory birds中文
    5.
  5. Migrating birds
    6.
  6. Fish migration
    7.
  7. Arctic tern
    8.
  8. West Pacific Flyway
    9.