Who developed the first shark cage?

Shark cage diving is underwater diving or snorkeling where the observer remains inside a protective cage designed to prevent sharks from making contact with the divers. Shark cage diving is used for scientific observation, underwater cinematography, and as a tourist activity. Sharks may be attracted to the vicinity of the cage by the use of bait, in a procedure known as 'chumming', which has attracted some controversy as it is claimed to potentially alter the natural behaviour of sharks in the vicinity of swimmers.

Shark cages were first developed by Jacques Cousteau. Cousteau used a shark cage during the production of "The Silent World" which was released in 1956. Rodney Fox developed his own shark cage in the 1960s. Fox's first design was inspired by a visit to a zoo he made after surviving a near-fatal shark attack in 1963.

Jacques-Yves Cousteau (1 June 1910 – 25 June 1997) was a French naval officer, explorer, conservationist, filmmaker, innovator, scientist, photographer, author and researcher who studied the sea and all forms of life in water. He co-developed the Aqua-Lung with Émile Gagnan. The Aqua-Lung was the first open-circuit, self-contained underwater breathing apparatus (or "scuba") to achieve worldwide popularity and commercial success.