A routine dive off the coast of Hawaii turns into an unforgettable adventure after two free divers discover a hidden sea cave with breathable air deep inside. As they navigate narrow tunnels, ...

Scientists have found a newly identified cavefish species in Alabama. The eyeless, translucent fish are named after a monster ...

From their ancient origins to their modern-day survival, explore the life of a jellyfish. This clip explains how their unique biology and the dynamics of ocean currents prevent them from getting ...

Filmed by Shannon Myers, this breathtaking footage captures her immersed in a mesmerizing underwater world surrounded by ...