It's Monday and the frontrunners in the 2018 Iditarod are on the Bering Sea coast, venturing out on a trail over sea ice from Shaktoolik to Koyuk. Alaska Public Media's Zachariah Hughes caught up with the top three -- Nicolas Petit, Mitch Seavey, Joar Leifseth Ulsom -- in Unalakleet on Sunday, as well as the legendary musher DeeDee Jonrowe, who scratched earlier in what she says was her last Iditarod after 36 total starts. We also hear from a Norwegian mushing reporter on four-time Iditarod champ Dallas Seavey's foray into the Finnmarksløpet, Europe's longest sled dog race.