How does the common marmoset see?
The common marmoset (Callithrix jacchus) is a mammal in the order Primates. Its eyes belong to the vision type Day dichromat mammal.
Measured in this species: colour, sharpness, foveas and night vision. Measured core: measured values on at least 3 of the 6 dials. Every value below carries its evidence level and sources; nothing is typed by hand.
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What stands out
- It has two colour receptor classes (a dichromat): reds and greens fall on one axis, as in red-green colour blindness in people.
- Its sharpest vision resolves 30 cycles per degree: the finest stripe pattern it can tell apart from grey.
- Its eyes cover about 200° around the head, with 137° seen by both eyes at once.
- It stops seeing flicker at 69 Hz, against 60 Hz for people in this dataset, so fast motion looks about 1.2 times slower to it.[15][16]
- 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.
| Dial | Value | Evidence | Sources |
|---|---|---|---|
| Colour | Colour receptors 2 receptor classes: 423 nm (VS/SWS (violet)), 556 nm (LWS (long)) measured in this species | Measured (not re-verified) | [1] |
| Sharpness | Acuity 30 cycles per degree median of 1 anatomical-ganglion rows (method priority rule) | Measured | [2] |
| Field of view | Binocular overlap 137° median of 6 relatives in order Primates: Otolemur crassicaudatus, Cephalopachus bancanus, Aotus trivirgatus, Saimiri sciureus, Macaca mulatta, Homo sapiens | Group default | [3][4] |
| Total field of view 200° median species-v1 total field of order Primates: Homo sapiens | Group default | [5] | |
| Sharp zones (foveas) | Number of foveas 1 fovea_present / area_centralis_type (retinal topography; count 1 = fovea present, 0 = none) | Measured | [6] |
| Fovea type fovea | Measured | [6] | |
| Night vision | Activity pattern diurnal mode of 9 rows (of 9 rows): diurnal; photopic | Measured (not re-verified) | [7][8][9][10][11][12][13][14] |
| Rods vs cones cone-dominated nocturnal -> rod-dominated; crepuscular / cathemeral / mixed -> mixed; diurnal -> cone-dominated | Derived | [7][8][9][10][11][12][13][14] | |
| Motion (flicker fusion) | Flicker fusion frequency 69 Hz median of 3 relatives in order Primates: Macaca mulatta, Macaca nemestrina, Homo sapiens | Group default | [15][16][17] |
Related animals
- Bolivian squirrel monkey same vision type
- Bushbaby same vision type
- Fat-tailed dwarf lemur same vision type
- Gray mouse lemur same vision type
- Ring-tailed lemur same vision type
- Small-eared galago same vision type
More mammals: all mammals with measured vision data.
Sources
- species_v1:Tovee, Bowmaker & Mollon 1992; Travis et al. 1988
- Veilleux CC, Kirk EC 2014. Visual acuity in mammals. Brain Behav Evol 83:43, Supplementary Table 1 (cleaned CSV in Evo-M1-Trait-Data). doi.org/10.1159/000357830
- Heesy CP 2004. On the relationship between orbit orientation and binocular visual field overlap in mammals. Anat Rec 281A:1104, Table 1. doi.org/10.1002/ar.a.20116
- Heffner RS, Heffner HE 1992. Visual factors in sound localization in mammals. J Comp Neurol 317:219, Table 1 (via Evo-M1 sensory merge). doi.org/10.1002/cne.903170302
- species_v1:Campbell & Green 1965
- Kopania EEK, Clark NL. 2025. Mammalian retinal specializations for high acuity vision evolve in response to both foraging strategies and morphological constraints. Evolution Letters 9: qrae072. Supplementary Tables S1-S2.. doi.org/10.1093/evlett/qrae072
- Anderson SR, Wiens JJ. 2017. Out of the dark: 350 million years of conservatism and evolution in diel activity patterns in vertebrates. Evolution 71:1944-1959. Dryad doi:10.5061/dryad.fg700. doi.org/10.5061/dryad.fg700
- Borges R, Johnson WE, O'Brien SJ, Gomes C, Heesy CP, Antunes A (2018) Adaptive genomic evolution of opsins reveals that early mammals flourished in nocturnal environments. BMC Genomics 19:121
- Wilman et al. 2014 EltonTraits 1.0, MamFuncDat.txt. doi.org/10.6084/m9.figshare.3559887.v1
- Longcore T. 2023. A compendium of photopigment peak sensitivities and visual spectral response curves of terrestrial wildlife to guide design of outdoor nighttime lighting. Basic Appl Ecol 73:40-50. doi:10.1016/j.baae.2023.09.002. doi.org/10.5281/zenodo.8432720
- Maor R, Dayan T, Ferguson-Gow H, Jones KE. 2017. Temporal niche expansion in mammals from a nocturnal ancestor after dinosaur extinction. Nature Ecology & Evolution 1:1889-1895. Supplementary Table 1. doi.org/10.1038/s41559-017-0366-5
- Jones KE et al. 2009. PanTHERIA: a species-level database of life history, ecology, and geography of extant and recently extinct mammals. Ecology 90:2648. Ecological Archives E090-184. doi.org/10.1890/08-1494.1
- Schmitz L, Motani R. 2011. Science 332:705-708, SOM. doi.org/10.1126/science.1200043
- Moura et al. 2024. A phylogeny-informed characterisation of global tetrapod traits addresses data gaps and biases. PLoS Biol 22:e3002658. TetrapodTraits v3.0.1.. doi.org/10.5281/zenodo.22536349
- Healy K, McNally L, Ruxton GD, Cooper N, Jackson AL. 2013. Metabolic rate and body size are linked with perception of temporal information. Animal Behaviour 86:685-696. Table 1. doi.org/10.1016/j.anbehav.2013.06.018
- Inger R, Bennie J, Davies TW, Gaston KJ. 2014. Potential biological and ecological effects of flickering artificial light. PLoS ONE 9(5): e98631. Table 3. doi.org/10.1371/journal.pone.0098631
- Lafitte A, Sordello R, Legrand M, Nicolas V, Obein G, Reyjol Y. 2022. A flashing light may not be that flashy: A systematic review on critical fusion frequencies. PLoS ONE 17(12): e0279718. S10 File (CFF database). doi.org/10.1371/journal.pone.0279718
Every value cites its sources (all sources). Data: catalogue-v1, built 2026-09-29. Accuracy notes: how accurate is this?