Roy P. Mackal, a University of Chicago scientist, fruitlessly pursued the creature for decades. One of his long-lost underwater cameras has been found.

Roy P. Mackal — the controversial and colorful University of Chicago scientist whose study of monsters caught the attention ...

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Comparing the flagship sonar products of just a generation ago to today’s best fish finders is like placing a Model T side-by-side with a modern sports car. The basic concept is the same, but the user ...