#DYK: There are fish nicknamed “four-eyed fish”?? 👁️👁️👁️👁️ Although it sounds like something out of a horror movie, there is a purpose behind it! The reason this fish is called this common name is because they have two pupils in each eye! One in the upper and one in the lower half, separated by a small band of tissue. This helps them to see above and below the waterline. This makes the four-eyed fish extremely difficult to catch because they can see predators whether they're above, below, or

Anableps anableps! Meet the (admittedly non-suave-looking) "4-eyed fish" that hunts in all directions—& the 17 babies ours just gave birth to. | California Academy of Sciences

👀 The four-eyed fish 👀 #anableps #foureyedfish #brakish #natureaquariums #oliverknott #okaqua #okisback #aquascape #aquarium #aquascaping #aquariumhobby #aquariumtank #aquariums #akvaryum #aquariumfish #instafish #tropicalfish #aquatic #aquaticlife #fishtank #fishkeeping #freshwaterfish #freshwater #aquaticplants #natureaquarium | Oliver Knott

Did you know anableps, also known as four-eyed fish, don’t actually have four eyes? Their unique eye structure lets them see above and below the water at the same time! Found along South America’s coastlines, these live-bearing fish follow the tides and catch worms and insects at the surface. | Mystic Aquarium