We were amazed at this to-scale map we found on Tumblr depicting the Mariana Trench, the deepest part ... Below that is the maximum diving depth of a blue whale, the largest animal known to ...

There's a plan to take the DSV Limiting Factor shortly to the Philippine Trench, which in terms of depth at 10,500m is third only to the Mariana and Tonga trenches. But it's a highly significant ...