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Ngày đăng: 05/08/2016

Chuyên mục: Kiến thức

You’re having a dream, and for some reason that giant rabbit that’s
about to eat you starts to sing like a bird. You wake up to find that
birds are singing outside your window! Check out this SciShow Quick
Question to find out why those birds sing in the morning! Hosted by:
Michael Aranda ---------- Support SciShow by becoming a patron on
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to the following Patreon supporters -- we couldn't make SciShow without
them! Shout out to Justin Ove, Coda Buchanan, Lucy McGlasson, Accalia
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http://instagram.com/thescishow ---------- Sources:
http://blog.wbu.com/2013/03/04/why-do-birds-sing-so-early-in-the-morning/ http://news.leiden.edu/news-2014/female-birds-sing-much-more-often-than-previously-thought.html
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