This is a trench that uses gravel or sand as a lining. As water collects in the crawl space, it seeps into the French drain and through a buried pipe that migrates the water to a lower area ...

The trench also has what Bartlett calls... Bartlett: These little sea pigs. Narrator: They're small, transparent sea cucumbers that crawl along the ocean floor on tentacle-like legs. But perhaps ...

If you want to find some of the weirdest organisms to ever slither, crawl, or swim ... place on the face of our planet. The Mariana Trench runs more than 1,500 miles long and spans more than ...