The Haedal Zone

The Haedal Zone is about one to two degrees C, not a lot of food, really high pressure. The Atacama Trench population seemed to be different enough to suggest it was a very similar but different species. And then South Sandwich Trench is a really interesting system as well because it's one of the few trenches where the temperatures down there are actually below zero. There might be that extra cold temperature might be accelerating diversification as well.