questionedithistorytranslations

Which part of a dog's or a cat's eye reflects the light?

conjuctiva
pupil
iris
a layer behind retina
Many vertebrates, especially nocturnal ones, have the reflecting layer called the tapetum lucidum. It reflects the light back through the retina, increasing the amount of light available to the photoreceptors.
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Answers by country

conjuctiva
pupil
iris
a layer behind retina
answers
flagAustralia
3%
8%
25%
62%
83
flagRomania
5%
30%
5%
60%
20
flagFrance
17%
11%
11%
58%
17
flagRepublic of Ireland
3%
19%
22%
54%
31
flagthe United States
8%
16%
20%
53%
660
flagthe United Kingdom
6%
14%
27%
51%
285
flagCzech Republic
0%
27%
22%
50%
18
flagthe Netherlands
3%
21%
27%
48%
33
flagSweden
15%
10%
26%
47%
19
flagthe Philippines
21%
18%
12%
45%
33
flagIndia
9%
22%
22%
44%
301
flagUnknown
8%
8%
40%
44%
25
flagPoland
12%
18%
26%
42%
19282
flagSwitzerland
25%
25%
5%
42%
95
flagGermany
24%
27%
7%
39%
728
flagPakistan
12%
22%
22%
38%
31
flagGreece
0%
27%
37%
34%
29
flagCanada
13%
22%
30%
33%
36
flagItaly
18%
22%
27%
31%
22
flagAustria
27%
36%
5%
30%
111

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