What discoveries were made by using the aqualung?

The aqualung, developed by Jacques Cousteau and Émile Gagnan in 1943, revolutionized underwater exploration and led to significant discoveries in marine Biology and oceanography. It allowed divers to explore previously unreachable depths, uncovering diverse marine ecosystems, shipwrecks, and underwater geology. Notable discoveries include the observation of deep-sea organisms, coral reefs, and the behavior of marine species in their natural habitats, significantly advancing our understanding of ocean environments. Additionally, the aqualung played a crucial role in the development of underwater Photography and film, further enhancing public awareness of marine conservation issues.