Sleep is necessary four our brains. Without it we wouldn't last long. So how do animals that spend their lives underwater manage to sleep without drowning or being eaten? Get your copy of "Strange Creatures" now! It’s filled with all the amazing animal facts and beautiful original illustrations that you’ve come to love from us. 📗🐾 Order here: http://bit.ly/animalogicbook 00:00 How Do Animals Sleep Underwater? 01:36 REM vs Non-REM sleep 02:32 Why sleep is essential for life 02:46 Cetaceans - Half-brain sleep 05:58 Pinnipeds - hybrid sleep 08:03 How marine mammals differ from humans 09:52 How scientists study fish sleep 11:12 How fish protect themselves while sleeping 12:22 Strange fish sleeping positions 13:01 How sharks sleep 14:38 Invertebrate sleep (octopus & jellyfish) 16:04 Sleep in brainless animals (jellyfish) Become an Animalogic member: https://bit.ly/AnimalogicMembership Get Animalogic Merch: https://bit.ly/3SXGrXL Support Animalogic on Patreon: https://www.patreon.com/animalogic Subscribe for new episodes on Fridays http://bit.ly/SubscribeToAnimalogic ----------- More Animalogic: https://www.tiktok.com/@animalogic https://www.facebook.com/AnimalogicShow ----------- Examining the nature of the beast. #fish #animals #sleep #ocean #wildlife #nature #documentary