The Gross Reason These Fish Follow Dugongs | Blue Planet III | 4K | BBC Earth

Dugongs, also known as sea cows, spend up to ten hours a day grazing on tough seagrass. While they work hard for their meals, the remora fish that follow them around have found an unusual yet easier way to feed... Blue Planet III returns to uncover extraordinary new stories and lives hidden beneath our oceans. Find out where to watch the full series 👉 https://www.bbcearth.com/shows/blue-planet-iii #BBCEarth #DavidAt…