A different species, a different insane record, and different technology, but also discovered only because of advances in the miniaturization of electronics: some arctic terns fly 90.000 km in about 9 months (http://ardea.nou.nu/ardea_show_abstract.php?lang=uk&nr=4099).
Even better, that's not just the equivalent but they actually do fly around the world - ok, not two straight flights around the world, but from the Arctic to Antarctica and back!
