"Swim call" is a military tradition in which sailors and Marines blow off steam by turning the middle of the ocean into their swimming pool. In 2012, Kyle Cawein took a video of one of these swim ...

Researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Nicknamed the 'mystery mollusc,' the nudibranch Bathydevius caudactylus swims through the ocean's midnight ...