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.
Challenger II returned to the spot with an echo-sounder and measured a depth of nearly 7 miles (11 kilometers). The majority of the Mariana Trench is now a U.S. protected zone as part of the Marianas Trench Marine National Monument, established by President George W. Bush in 2009.Permits for research in the monument, including in the Sirena Deep, have been secured from the U.S. Fish and Wildlife Service.hallenger II returned to the spot with an echo-sounder and measured a depth of nearly 7 miles (11 kilometers). The majority of the Mariana Trench is now a U.S. protected zone as part of the Marianas Trench Marine National Monument, established by President George W. Bush in 2009.