In 2012, the long-elusive giant squid was finally filmed live in its natural habitat. The squid was found by placing glowing lures outside of a submersible to mimic jellyfish, which typically indicate to the squid that food is nearby. Before this encounter, the giant squid had never been observed in its natural environment, and the only film had been taken of a squid caught on a hook and brought to the surface. You can read more about the search for the giant squid on video from Clyde Roper, the Smithsonian's own giant squid expert.