Robert Harcourt, IMOS Animal Tagging
- Scientists put trackers on Antarctic seals to help them map the ocean floor.
- The deep-diving seals revealed a massive underwater canyon over a mile deep.
- This canyon may help scientists predict how the Antarctic ice sheet will react to climate change.
Seals wear many hats — ambassadors for the Antarctic, friends to whales, and award-winning models. Their new hat has a scientific purpose, helping researchers discover the unseen parts of the ocean floor.