00:00You won't believe what this animal can survive.
00:03Snow geese fly 1,000 miles nonstop during migration.
00:08That's like flying from New York to Denver without landing once.
00:12And it gets crazier.
00:14They do this using only half their brain sleeping at a time,
00:17while the other half stays alert for predators.
00:20These birds are basically superheroes.
00:22Follow for more insane animal facts.
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