How many animal species live on the ocean floor?

The number of animal species living on the ocean floor, also known as the benthic environment, is highly varied and depends on the depth, temperature, pressure, and nutrient availability in different regions. Benthic animals, collectively known as benthos, include various organism from microscopic forms to large vertebrates.

While it is challenging to provide a precise species count due to ongoing discoveries and unexplored areas, scientists estimate that there may be about 10 Million to 100 Million animal species inhabiting the ocean floor around the globe. This figure is a staggering reflection of the ocean's incredible biodiversity and ecological significance.