Barreleye Fish Transparent Head Weird Looking Fish!
How have I never heard of a barreleye fish before now?
I am seriously stunned I haven’t heard of this amazing fish before. It doesn’t seem like it should be real, but it is, and it’s a weird fish. There are a number of different fish which make up the barreleye family.
The feature that makes the barreleye stand out is it’s fluid filled, transparent dome head. Inside their dome shaped head they have barrel-shaped, tubular eyes, which are generally directed upwards to detect the silhouettes of available prey; however, the fish are capable of directing their eyes forward, as well. This fish is living proof that the ways life can form are absolutely endless.
I’ll be listing some of the most remarkable facts about the barreleye fish but first check out the image I’ve posted below pointing out the eyes of the barreleye fish.
Facts about the barreleye Fish
- The barreleye fish was first discovered in 1939
- The eyes of the barreleye look straight up to scan for predators or prey but can also rotate forward when eating
- Barreleyes typically live in a depth where sunlight from the surface fades to complete blackness
- They use their ultra-sensitive tubular eyes to search for the faint silhouettes of prey overhead.
- The two spots above the fish’s mouth are are olfactory organs called nares, which are analogous to human nostrils
- Barreleyes large, flat fins allow them to remain nearly motionless in the water
- Their small mouths suggest that they can be very precise and selective in capturing small prey
- The digestive system of barreleye fish are very large, which suggests that they can eat a variety of small drifting animals as well as jellies
- Most of the time, the barreleye fish hangs motionless in the water, with its body in a horizontal position and its eyes looking upward.
- The green pigments in its eyes may filter out sunlight coming directly from the sea surface, helping the barreleye spot the bioluminescent glow of jellies or other animals directly overhead
- When it spots prey (such as a drifting jelly), the fish rotates its eyes forward and swims upward, in feeding mode.
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