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"I had to look it up, but Fangtooth, as you fishermen know, probably or marine ecology enthusiast, it's a deep sea fish with big jaws and protruding fangs. The two person sub was used by the community submersible project. Stopnicki was the director and that was a science collective based in Berkeley dedicated to making underwater exploration accessible to the public. And they did pilot training programs and online coursework and practical checkout dives. And their aim was to launch a public submersible pilot certification agency modeled after aviation training."