There’s an enormous, 15 square kilometre, 300-year-old sponge garden hidden in the depths of the Central Arctic Ocean – and scientists had never seen it until 2022.
Some of the sponges found on Langseth Ridge are smaller than a penny, at just 1cm in diameter, while others can grow to around half a metre – roughly the size of a small exercise ball.
Throughout the year, the North Pole is almost always covered with around two or three metres of sea ice. This thick layer…
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Source www.discoverwildlife.com
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