Macrouridae (Grenadiers)

Macrouridae, commonly known as grenadiers or rattails, are a family of deep-sea fish found in colder oceanic waters worldwide. They are characterized by their elongated bodies and large heads, with a distinctive tapered tail. Grenadiers typically inhabit depths ranging from 200 to 3,000 meters (656 to 9,842 feet) and feed primarily on small fish and invertebrates. Their unique adaptations for living in deep waters include large, sensitive lateral lines that help them detect movements in the dark. While not widely consumed, they play a significant role in marine ecosystems and are of interest in deep-sea fishing and research.