Relating to the bottom of a body of water, especially the ocean floor and the organisms that live there. The benthic zone includes all bottom-dwelling communities from shallow coastal areas to the deepest ocean trenches.
From Greek 'benthos' meaning 'depth of the sea' or 'sea bottom,' derived from 'bathys' meaning deep. The term was introduced into marine biology in the late 19th century as scientists began systematic study of ocean floor communities.
The benthic zone covers 70% of Earth's surface and contains some of the most bizarre life forms on the planet! From giant tube worms at hydrothermal vents to sea pigs crawling across abyssal plains, the seafloor is like an alien world right here on Earth.
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