Guinea pigs have large eyes with a 340-degree field of view but limited depth perception. They're nearsighted, relying on hearing and memory to navigate. They detect motion well and have dichromatic color vision. While not great at night vision, their adaptations help them survive and find food.

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References:
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*Measuring the Ocular Morphological Parameters of Guinea Pig Eye with Edge Detection and Curve Fitting. 2020, Di Y, Huang Y, Yang YJ, Zhou XT, Luo WT, Ye HY, Qiao ZB, Lu N, Qiao T. https://www.ncbi.nlm.nih.gov/pmc/arti...

*Emmetropization and schematic eye models in developing pigmented guinea pigs,
Vision Research, Marcus H.C. Howlett, Sally A. McFadden, 2007,
https://doi.org/10.1016/j.visres.2006...

*Spectral sensitivity, photopigments, and color vision in the guinea pig (Cavia porcellus). Behavioral Neuroscience 108, 993–1004. Jacobs, G.H. & Deegan, J.F. 1994.

*Visual function in guinea pigs: behavior and electrophysiology. Jnawali A, Puri S, Frishman LJ, Ostrin LA. 2021,
https://www.ncbi.nlm.nih.gov/pmc/arti...

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In this video we talk about:
guinea pig, cobayos, conejillos de indias, cochons d'Inde, meerschweinchen, morče, marsvin, cavia, marsu, tengerimalac, marmot, porcellino d'India, cobaia, gine domuzu, chuột bạch, świnka morska, морская свинка, خوکچه هندی ,خنزير غينيا, 豚鼠, モルモット, 기니피그, or หนูตะเภา!