Date: 4/7/18 8:57 am
From: 'Bill Rapai' via Birders <birders...>
Subject: [birders] Cry4 -- the secret to how birds navigate during migration
Birders:


It looks like researchers have finally unlocked the "how" of bird migration. The missing piece of knowledge is a protein called Cry4. That protein, found in the eyes of certain bird species, allows them to see the Earth's magnetic field.


Knock me over with a feather!


https://www.forbes.com/sites/trevornace/2018/04/04/we-finally-know-how-birds-can-see-earths-magnetic-field/#1feedb3d20e1



Bill Rapai
Grosse Pointe



Author of Brewed in Michigan: The New Golden Age of Brewing in the Great Beer State, which has been named a Michigan Notable Book for 2018 by the Library of Michigan. http://www.wsupress.wayne.edu/books/detail/brewed-michigan







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