The midnight zone, or bathypelagic, extends to about 4,000 meters (about 13,100 feet), which reaches the ocean floor in many places is in perpetual darkness.
Five feet above a rising ocean
Tracking the ocean's deepest diving animals into the twilight zone
The 5 Ocean Zones And The Creatures That Live Within Them – Cape Clasp
MIDNIGHT - 邦楽
Exploring the Ocean's Depths
ミッドナイト・ゾーン - DVD/ブルーレイ
In the ocean's twilight zone, a fish that could feed the world
Researcher dives to Challenger Deep
Woods Hole Oceanographic Institution
Midnight Zone - Woods Hole Oceanographic Institution