Question

Largest eyes among land animal is of
A) Elephant
B) Deer
C) Ostrich
D) Man

Answer 1

Hint:Animals rely heavily on eyes for survival. The birds have sharp eyes to locate the prey from a long distance. Whales and seals have large eyes.

Complete answer:
To answer this question, we must know about the size of eyes in the option given in the question.
All the animals have different types of eyes in accordance with the place they live and what they do to survive.
>Elephant- Elephant is a large terrestrial animal. They have a relatively big eye with a size around 3.8cm. They have poor eyesight and can see upto 25 feet.
>Deer- Deer is an herbivore. It has poor eyesight of 20/100 vision. They lack UV filters in their eye and cannot distinguish all the colours.
>Ostrich- Ostrich is a flightless bird. They have the largest eye of all the land animals. The size of the eye is 5cm which is five times that of the human eye. It is larger than its own brain. They have huge photoreceptors.
>Man- The size of the human eye varies from 21-25mm. They have a camera—type of eye which is adapted for both day and night vision.

Thus the correct answer is (C). Largest eyes among land animals is of Ostrich.

Note:The ostrich can locate a large dog at a distance of 3km in the day and can trace upto 50m at night. Ostrich is mostly found in savanna grassland. Their large eyes help it from protecting it from the predators.