Animaniacs had a large cast of characters, most of whom appear here. This is a list of characters in the Warner Bros. animated television series, Animaniacs.
James Cameron traveled to the bottom of the Mariana Trench last year â a depth of nearly seven miles. James Cameron traveled to the bottom of the Mariana Trench last year â a depth of nearly seven miles. Courtesy of Mark Thiessen/National Geographic.
It is approximately 1,500 miles long. The deepest portion of the Mariana Trench is the Challenger Deep, a narrow portion at the southern end, which is roughly 36,000 feet deep. The water temperature in this area is slightly above freezing. The world's ocean trenches remain largely unexplored due to the immense pressures at such depths.