Based on the provided reference, cheetahs possess a distinct small, round pupil which is a crucial part of their visual system.
Understanding Cheetah Eye Anatomy Based on the Reference
While the question asks about the shape of the entire eye, the provided reference specifically details a key feature of the cheetah's eye: its pupil. According to the reference:
- Cheetahs have a small, round pupil.
- This round pupil can open wider than any other big cat's pupil.
- This ability to dilate widely allows them to see clearly even in low light conditions, which is beneficial for hunting during dawn or dusk.
Beyond the pupil shape and dilation, the reference also highlights other capabilities of the cheetah's eye:
- They have a high concentration of receptors in their eyes.
- This high concentration helps them detect movement from far away, essential for spotting prey across open grasslands.
The Significance of the Round Pupil
Unlike many domestic cats and some other nocturnal predators that have pupils which contract into vertical slits, the cheetah's pupil remains round. This characteristic, combined with its ability to dilate significantly, contributes to their exceptional vision, particularly their ability to gather light and track prey visually.
In summary, while the reference focuses on the small, round pupil rather than the overall shape of the eyeball, the round pupil is a defining feature of cheetah eyes and plays a vital role in their remarkable hunting capabilities.