17:
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sensitive, medium wavelength sensitive etc.). This can be a benefit because it increases the number of colours that can be discriminated, and calculations by
Vorobyev (2003) support the hypothesis that this is of net benefit.
98:
of oil droplets is not firmly established. Coloured oil droplets have a cost in that they reduce the amount of light available to the
75:. Occurrence in rod cells may imply that they have been modified from a cone cell ancestor. They occasionally occur in
321:
83:, while others appear colourless. They are located in the cone inner segment, where they intercept and filter
255:
Wilby D, Toomey MB, Olsson P, Frederiksen R, Cornwall MC, Oulton R, Kelber A, Corbo JC, Roberts NW (2015).
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186:. MI, Bloomfield Hills: Cranbrook Institute of Science. pp.
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before it can pass through to the cone outer segment where the
28:
206:"Coloured oil droplets enhance colour discrimination"
257:"Optics of cone photoreceptors in the chicken (
183:The Vertebrate Eye and its Adaptive Radiation
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106:between different types of cone (e.g. short
59:), though are present in other taxa such as
35:. They are especially common in the eyes of
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31:of some animals, being located in the
20:Bird cone cell, including oil droplet.
91:are, the molecules that sense light.
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79:/double rods. Some oil droplets are
102:. They also reduce the overlap in
14:
130:"Early vertebrate color vision"
1:
338:
259:Gallus gallus domesticus
39:(active during the day)
128:Robinson, S.R. (1994).
71:, suggesting a role in
67:far more often than in
279:10.1098/rsif.2015.0591
224:10.1098/rspb.2003.2381
21:
211:Proc. R. Soc. Lond. B
204:Vorobyev, M. (2003).
19:
266:J. R. Soc. Interface
104:spectral sensitivity
63:. They are found in
218:(1521): 1255–1261.
146:1994Natur.367..121R
33:photoreceptor cells
180:Walls, G. (1942).
96:adaptive advantage
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322:Human eye anatomy
273:(111): 20150591.
27:are found in the
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77:double cones
25:Oil droplets
24:
23:
57:bird vision
311:Categories
115:References
108:wavelength
65:cone cells
297:26423439
242:12816638
81:coloured
61:lungfish
41:reptiles
288:4614498
233:1691374
164:8114909
142:Bibcode
49:turtles
45:lizards
37:diurnal
295:
285:
240:
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134:Nature
89:opsins
51:) and
43:(e.g.
317:Color
85:light
55:(see
53:birds
293:PMID
238:PMID
190:–63.
160:PMID
94:The
69:rods
29:eyes
283:PMC
275:doi
228:PMC
220:doi
216:270
150:doi
138:367
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