The deepest parts of the ocean known as the twilight zone could see a loss of life to its species due to global warming. The twilight zone lies between 200m (656ft) and 1,000m (3,281ft). This part of the ocean is home to more fish than the rest of the ocean and other species. It acts as a carbon sink absorbing a large amount of carbon dioxide from the atmosphere. As carbon dioxide levels rise in the atmosphere, the ocean absorbs more gas leading to acidification, oxygen is depleted, and it hinders the shells and physiological development of ocean species. It is unlikely that these species will be able to adapt to warming oceans, for the centuries to come.