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BetterThanSobertoday at 2:49 AM1 replyview on HN

If it is mainly genetic then a bird raised in captivity should be able to track the route somewhat accurately, that's groundbreaking


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lioeterstoday at 3:12 AM

I guess the "guidance system" is not located in any organ or individual bird, but as a kind of accumulated collective knowledge. Perhaps the term was misleading, since it's a metaphor relating to a mechanism in individual airplane, rocket, etc. Anyway, fascinating to learn more about these lovely creatures.