Sea Urchins

The documentary features magnified close-ups of sea urchins, revealing their intricate anatomy. Viewers can observe their mouth and five teeth as they open and close. By injecting gelatin into one specimen and removing its shell, the film exposes its muscle structure, digestive tube, and reproductive organs.

The film also highlights the dynamic movement of sea urchins as their stems lengthen and contract, enabling them to traverse their underwater environment. Microscopic views showcase calcareous stems and jaws, illustrating their various functions. Accompanied by a lively African music soundtrack, the film adds an engaging auditory layer to the visual experience.

For collectors, "Sea Urchins" is available in all formats, making it an accessible addition to any documentary collection. Its focus on marine biology and unique filming techniques offers an educational perspective on a less commonly explored subject.