can fish see?

Uh, yeah, fish see... Fish can be blind, which would mean they can't see, but almost all fish are born with the ability to see (except for cave fish like the Blind Cave Tetra who has no eyes because it lives in complete darkness). Without the fish's ability to see, how do you think they navigate through their underwater world? If they couldn't see, why would they have eyes?

Soop Nazi

2007-10-02 03:12:49 · answer #1 · answered by nosoop4u246 7 · 1⤊ 0⤋

Within vertebrates, the eye seems to be the most constant feature. The eye is used in conjugation with the other senses to find food, shelter, mates, and to avoid predators. The eye of a fish contains a retina, an optic nerve, a lens, a cornea, an iris and three pairs of oculomotor muscles. The eye of a fish is generally soft. However, there are many adaptive changes due to slight changes in habitat, such as depth. Many fish can see in color and in both air and water. The size of a fish's eye varies according to the depth and quantity of light present. Generally the size of the eye of a fish increases with depth as the quantity of light present decreases. Some fish contain even a Tapetum Lucidum; an eye structure composed of glowing guanine crystals that amplify light. At the end of the photic zone, eye size drops off due to complete lack of light. The eye of the fish has evolved to be completely sphere as to enable vision underwater due to higher refractive index. Fish do not have the capabilities to dilate or contract their pupils as the lens bulges through the iris due to the fact that fish focus by moving the lens in and out instead of stretching. Fish, aside from several species of sharks, do not posses eyelids. A nictitating membrane cleans the surface of the cornea, and an adipose layer composed of fat protects the eyeball.
http://www.bishops.k12.nf.ca/wells/vfish/projects/nervous/SENSES.html

2007-10-02 03:02:30 · answer #2 · answered by JS 3 · 0⤊ 1⤋

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2016-03-25 17:04:14 · answer #3 · answered by ? 4 · 0⤊ 0⤋

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RE:
can fish see?

2015-08-06 08:14:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋

Not all fish can see but most of them can. FIsh such as blind cave tetras can see but they sense through their lateral line.

2007-10-06 01:12:08 · answer #5 · answered by Chris 5 · 0⤊ 0⤋

yea but they sense most of thier movements with thier lateral line. this is especially for the blind cave tetra who must rely on it b/c it can't see.

2007-10-02 02:50:34 · answer #6 · answered by Count b 2 · 0⤊ 0⤋

I will not say that all of them do, but at least bettas do!
Unless they are born blind which is a posibility.

2007-10-02 02:50:42 · answer #7 · answered by racm_86 3 · 0⤊ 0⤋

yes they can see

2007-10-02 08:53:32 · answer #8 · answered by starlit_rain 2 · 0⤊ 0⤋

yes...fish can see like people or maybe batter......

2007-10-02 02:53:11 · answer #9 · answered by lia_girly_19 1 · 0⤊ 0⤋

lol yeah

2007-10-02 05:12:00 · answer #10 · answered by ♪♥ ♥♪ 3 · 1⤊ 0⤋

10 answers