61 reactions · 3 comments | A new study by the nonprofit Ocean Discovery League reveals just how far we have left to go in understanding the mysterious seascape. That’s because the deep sea makes up 66% of the Earth’s surface, of which only 99.999% has ever been explored Researchers argue that expanding deep-sea exploration is vital to understanding and managing these marine habitats. What do you think? #expedition #oceanconservation | Oceana Canada | Facebook