Underwater cleaning exposes what surface skimming never reaches. This video shows a full underwater hoovering session from start to finish. Dirt, debris, and buildup become impossible to ignore. It’s ...

PORTLAND ( InvestigateTV) — Scuba divers at the Oregon Zoo venture beneath thousands of gallons of water daily to help keep underwater habitats clean for the animals that call them home.

Residents at Palmer Station, a year-round U.S. research station on the Antarctic Peninsula, removed old debris from the sea floor near the station in late April 2007, as a part of an annual Earth Day ...