The Himalayan mountains climb miles high, forming a towering fence line across Asia. But they also plunge miles deep -- buried at the bottom of the Bay of Bengal, off the eastern coast of India.
The underwater portion of the Himalayas forms the Bengal Fan -- a roughly cone-shaped bed of sediments that extends far into the Indian Ocean. It’s about 2,000 miles long, 600 miles wide, and up to 10 miles thick. It’s the largest submarine fan in the world.
Descending several hundred feet toward the twilight zone of the ocean, there’s usually too little light to perceive any colors. Many creatures are visible primarily because of their bioluminescence – the dim, glowing light they produce. But one hardy little fish living on deep reefs in the Indian Ocean has defied the odds.
