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Arabian camel vision: the science and the numbers

Camelus dromedarius · order Artiodactyla · Mammals: all the numbers

Its sharpest vision resolves 10.4 cycles per degree, against 63.75 for people in this dataset.[6] Its activity pattern is diurnal.[13][1][14][15][16][17][18]

  • 10.4cycles per degree (sharpness)Measured

The Arabian camel (Camelus dromedarius) is a mammal in the order Artiodactyla. Its eyes belong to the vision type Grazing ungulate panorama: two cone types, a horizontal band of sharp vision and a near-panoramic field with a blind area behind the head. Measured in this species: sharpness, foveas and night vision. Measured core: measured values on at least 3 of the 6 dials.

This is a simulation built from published eye measurements, not what the animal experiences.

What the Arabian camel sees: colour receptors

Arabian camel colour receptor peaks, 300 to 700 nmArabian camel: 1 receptor peak at 438 nm; you: 3 at 421.5, 532, 558.4 nm. ultraviolet300400500600700
Arabian camel: 438 nmPeople: 421.5, 532, 558.4 nmWavelength in nanometres

What stands out

  • Its sharpest vision resolves 10.4 cycles per degree: the finest stripe pattern it can tell apart from grey.
  • Activity pattern: diurnal.

The six dials

Evidence levels: how the tiers work. "Measured" means a value measured in this species; "Estimated" values come from a close relative or an eye-size formula. The last column gives the values for people from the same catalogue.

Vision values for the Arabian camel (Camelus dromedarius), catalogue-v1
DialValueEvidenceSourcesPeople
ColourColour receptors
1 receptor class: 438 nm (VS/SWS (violet))
ESTIMATE: receptor classes from opsin-gene presence in this species; lambda max per class from the measured class template of the nearest taxon (never from the gene itself)
Group default[1][2]Colour receptors: 3 receptor classes: 421.5 nm (VS/SWS (violet)), 532 nm (MWS (green)), 558.4 nm (LWS (long)) Measured (not re-verified)[2][3][4][5]
SharpnessAcuity
10.4 cycles per degree
median of 1 anatomical-ganglion rows (method priority rule)
Measured[6]Acuity: 63.75 cycles per degree Measured[7][6]
Field of viewBinocular overlap
45°
median of 4 relatives in order Artiodactyla: Ovis aries, Bos taurus, Capra hircus, Sus scrofa
Group default[8][9]Binocular overlap: 122.5° Measured[8][9]
Total field of view: 200° Measured (not re-verified)[10]
Blind area behind the head: 160° Derived[10]
Eye placement: frontal Derived[8][9]
Total field of view
350°
group default: median total field of vision type the "Grazing ungulate panorama" type within phylum Chordata in species-v1: Equus caballus
Group default[11]
Sharp zones (foveas)Number of foveas
0
fovea_present / area_centralis_type (retinal topography; count 1 = fovea present, 0 = none)
Measured[12]Number of foveas: 1 Measured[12]
Fovea type: fovea Measured[12]
Fovea type
anakatabatic area, area centralis
Measured[12]
Night visionActivity pattern
diurnal
mode of 9 rows (of 9 rows): diurnal; photopic
Measured (not re-verified)[13][1][14][15][16][17][18]Activity pattern: diurnal Measured (not re-verified)[19][1][14][2][15][16][17][18]
Pupil shape: vertical Group default[13][20]
Reflective layer (tapetum): no Measured[21]
Rods vs cones: cone-dominated Derived[19][1][14][2][15][16][17][18]
Rods vs cones
cone-dominated
nocturnal -> rod-dominated; crepuscular / cathemeral / mixed -> mixed; diurnal -> cone-dominated
Derived[13][1][14][15][16][17][18]
Motion (flicker fusion)Flicker fusion frequency
60 Hz
median of 2 relatives in order Artiodactyla: Ovis aries, Sus scrofa
Group default[22]Flicker fusion frequency: 60 Hz Measured[23][24]

All mammals side by side: Mammals: every measurement. Method: how we know what animals see.

Sources

  1. Borges et al. 2018
  2. Longcore 2023
  3. Kirwan
  4. Müller et al. 2009
  5. Thermal Activation and Photoactivation of Visual… 2004
  6. Veilleux et al. 2014
  7. Kirk et al. 2004
  8. Heesy 2004
  9. Heffner et al. 1992
  10. Campbell & Green 1965
  11. Timney & Keil 1992
  12. Kopania et al. 2025
  13. Banks et al. 2015
  14. Wilman et al. 2014
  15. Maor et al. 2017
  16. Jones et al. 2009
  17. Schmitz et al. 2011
  18. Moura et al. 2024
  19. Anderson et al. 2017
  20. Cervino et al. 2021
  21. Guareschi et al. 2025
  22. Haarlem et al. 2026
  23. Healy et al. 2013
  24. Inger et al. 2014

Every value cites its sources (all sources). Values were extracted from these works and converted (units, medians, derived values); changes are ours, and the listed sources do not endorse this site. Data: catalogue-v1, built 2026-09-29. Accuracy notes: how accurate is this? Method: how we know.