Humans have only explored a tiny percentage of the seafloor, so there's a good chance some of the strangest creatures or relics haven’t even been discovered. With that in mind, here’s a collection of ...

Named for its thin, metallic body, the hatchetfish uses light-sensitive organs to adjust how it reflects light, making itself almost invisible. It lives between 600 and 4,500 feet down.

Their adaptation showcases the unique ecosystems that develop around the thermal vents deep underwater. Lovely Hatchetfish the deep sea’s floating mirror known for its dazzling reflective scales and ...

Deep Sea Hatchet Fish. Amada44, CC BY-SA 3.0 via Wikimedia Commons Deep-sea hatchetfish (family Sternoptychidae) have perfected a sophisticated form of camouflage called counter-illumination. These ...

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Deep-Sea Hatchetfish With a flattened, metallic body and a glowing underside, the hatchetfish blends seamlessly into the surrounding water, making it nearly invisible to predators. Getty Images ...