Narrator: The Mariana Trench is the deepest point on Earth ... Now, like lobsters, these animals have hard exoskeletons made of calcium carbonate, which you normally wouldn't find down here ...

Mariana Trench: Deepest ocean 'teems with microbes ... a recent study found this was a widespread problem, even for animals living in the deep. The dive forms part of the Five Deeps expedition ...

Likewise, with the deep ocean, Don Walsh went to the bottom of the Mariana Trench and then for several ... Galathea expedition in 1951 trawled animals from more than 10km down.

The moaning was first detected back in 2014 and it had marine experts stumped, thinking it sounded more like ship noise than any Mariana Trench animals. They figured it must be some kind of whale ...

Discover techniques for diving down the Mariana Trench safely. Kamala Harris issues defiant two-word vow after losing election to Donald Trump Red and Rover by Brian Basset NFL News: Chiefs cut ...