Tiger - Eyes
Like humans, tigers have binocular vision. This enables them to be able to use their sense of depth perception to judge distances, giving their pouncing and jumping actions a distinct accuracy.If they were not able to judge distances as well as they can, they could injure or lose their prey, rather than catching and killing it swiftly.The eyes of the tiger are situated on the front of its head, and not to the sides. This helps with three-dimensional perception and depth perception, since both eyes look ahead.
Tigers hunt mainly during the evening and night times, when the vision of their prey is compromised. For this reason, their night time vision is excellent; about six times better than that of humans. There are several adaptations within the actual eye that allow for this:
1.It has a wide, rounded pupil that allows maximum light to enter into the eye, when necessary.
2.The anterior chamber and lens of the eye are also larger for the same reason.
3.The tigers retinas comprise mainly rod receptors, which are cells that are sensitive to low light levels and can perceive very slight movements. There are some cone cells (colour receptors) in each eye, but these are used more for day vision, and not to perceive a range of different colours. In fact, it is thought that some tigers likely only see dull greens, blues and reds, while others see in black and white.
Tiger - Eyes
Like humans, tigers have binocular vision. This enables them to be able to use their sense of depth perception to judge distances, giving their pouncing and jumping actions a distinct accuracy.If they were not able to judge distances as well as they can, they could injure or lose their prey, rather than catching and killing it swiftly.The eyes of the tiger are situated on the front of its head, and not to the sides. This helps with three-dimensional perception and depth perception, since both eyes look ahead.
Tigers hunt mainly during the evening and night times, when the vision of their prey is compromised. For this reason, their night time vision is excellent; about six times better than that of humans. There are several adaptations within the actual eye that allow for this:
1.It has a wide, rounded pupil that allows maximum light to enter into the eye, when necessary.
2.The anterior chamber and lens of the eye are also larger for the same reason.
3.The tigers retinas comprise mainly rod receptors, which are cells that are sensitive to low light levels and can perceive very slight movements. There are some cone cells (colour receptors) in each eye, but these are used more for day vision, and not to perceive a range of different colours. In fact, it is thought that some tigers likely only see dull greens, blues and reds, while others see in black and white.