Caption Malacosteus niger is one of two species of male dragonfish to reveal they grow larger eyes in order to seek out females in the deep ocean, a sexual dimorphism that makes the dragonfish an ...

Kenaley and his team of Boston College undergraduates, working with Stockholm University biologist Valentina Di Santo, studied two species—Malacosteus niger and Photostomias guernei—of deep-sea ...

The dragonfish produces a red light beam using a unique organ located near the rear of its eye and it is one of the few deep sea creatures that can perceive red light.