10 Most Shocking Animals You Probably Didn’t Know Exist!

Barreleye Fish

The Barreleye Fish is a small family of unique fish. They live deep in the depths of the ocean. They are found in the Atlantic, Pacific, and Indian Oceans. They may be found in both temperate and tropical waters. The common name of the Barreleye Fish derives from the unique nature of their eyes. These orbs are generally directed straight upward. This is an evolutionary adaptation that allows them to see the silhouettes of potential prey. However, they are capable of moving their eyes in other directions. This species is also sometimes referred to as the Spook Fish.

Barreleye Fish Physical Characteristics

The Barreleye Fish is known for the remarkable adaptations of its eyes. They are extremely large. They are also contained within a transparent dome of soft tissue covering the head of the fish! This covering protects the eyes from the attacks of predators. It may also serve to augment their vision. The mouth is small, and toothless. In color, the Barreleye Fish is typically a dark brown, though covered in small, silvery scales. Most of the various species are less than 8 in (20 cm) in length. However, one species does attain a length of as much as 20 in (50 cm).

Barreleye Fish Habitat and Life Cycle

The Barreleye Fish inhabits the pelagic zone of the ocean. They are typically found at depths ranging from 1,312-8,200 ft (400-2,500 m). This places their habitat just below the limits of light penetration. Looking up with their large eyes, they locate their prey by their silhouettes, while remaining unseen in darker depths. Few details of their reproductive habits are known. They appear to be pelagic spawners. Eggs and sperm are released into the water. Fertilized eggs are buoyant, and rise to shallower depths. Once the juveniles reach adulthood, they descend to the deeper depths. #ourbreathingplanet

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