Ariel the mer Irish Setter saw and meet the DSV Alvin when Alvin is exploring the deep of the Atlantic Ocean and saw black smokers. Ariel also study about the black smokers and also collecting rocks too. She also meet the oceanographists inside the DSV Alvin and also make friend too at the boat named Atlantis. This is my idea came from BBC's Earth Story episode The Deep and some pictures about mer Irish setter too.

Quotes from The Deep:
This submarine is setting out to explore the floor of Atlantic Ocean. What lays in the bottom is a complete mystery. But there are thousands meters of water lies the key how the Earth formed. The Deep.

https://en.wikipedia.org/wiki/DSV_Alvin

https://en.wikipedia.org/wiki/Earth_Story