For decades, oceanographers have known that something did not add up in the deep sea. Huge predators like sharks and tunas were spending long stretches in the dim “twilight zone,” yet the known prey ...

The NHK team that captured the world's first footage of a live giant squid in its natural habitat is setting out for another deep-sea adventure. They will give us a look at the amazing life forms with ...

Prelude -- PART 1. EXPLORE. Here is the deep -- The whale and the worm -- Caught in a jelly web -- In a chemical world -- Highs and lows -- PART 2. DEPEND. Deep matters -- Deep cures -- PART 3.