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How do whales sleep? On the sea-bed of course. But jokes aside\u2026 Marine mammals are facing a challenge: they need to breathe air regularly, so what do they do when it\u2019s time to sleep? I\u2019m jumping into the ocean with my brand new SCUPA gear to find out!\n\nDo you have a fun animal mystery you want us to explore? Let us know in the comments in the Earth Rangers App.\n\nEarth Rangers is brought to you by support from Factor Meals. \nFor more information go to FactorMeals.com/EarthRangers50 and use code "earthrangers50" to get 50% off your first box plus 20% off your next month.\n\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\nAre you a card-carrying Earth Rangers member yet? Make sure to sign up for the FREE App today to get your membership card in the mail!\nGet it here! https://www.earthrangers.com/EN/CA/get-the-app/\nAnd don't forget to use the code "EMMA" in the App to unlock 25 bonus points.\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\nEarth Rangers is a registered charity and the App is always free to use. For more information visit www.earthrangers.com\nLearn more about your ad choices. Visit megaphone.fm/adchoices