Dr. Stephanie Villalba, assistant professor of biological sciences at LSU Shreveport, discusses "Born of the Ocean" before She Is the Ocean. The Mammalian Diving Reflex helps us conserve oxygen when we are submerged in water, and Dr. Villalba explores what happens to our bodies under the extreme circumstances experienced by surfers and divers like those featured in the documentary.

Science on Screen is an initiative of the COOLIDGE CORNER THEATRE with major support from the ALFRED P. SLOAN FOUNDATION.