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Carnivorous ‘death ball’ sponge and other new species discovered deep in the Pacific Ocean, scientists confirm

Scientists exploring the deep Pacific Ocean have discovered several new sea creatures, including a carnivorous sponge that eats small animals. The sponge has been nicknamed the “death ball” because of ...
NPR

Why some species in the deep sea get bigger, while some species get smaller

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.