One of the most unique features of deep sea shrimp is their ability to produce bioluminescence, which is the emission of light by a living organism. This is a special adaptation that allows them to communicate, find mates, and avoid predators in the dark, deep ocean environment. Additionally, deep sea shrimp have developed specialized appendages and sensory organs that allow them to survive in the high-pressure, low-light conditions of the deep sea. Some species of deep sea shrimp can also live for very long periods of time, up to 100 years, which is much longer than most other species of shrimp.