The retinas of predatory birds such as hawks ____.
A) have no discernible fovea
B) have a greater density of receptors than do humans on the top half of the retina
C) have a greater density of receptors than do humans on the bottom half of the retina
D) are virtually indistinguishable from the retinas of humans

Question

Quizplus · Accepted Answer

Predatory birds such as hawks have a greater density of receptors than do humans on the top half of the retina, which allows them to have excellent visual acuity and detect even the slightest movement of prey from a great distance. They also have a specialized fovea, known as the "fovea centralis," which is adapted for high-resolution vision and often contains a cluster of oil droplets that act as filters to enhance color perception.

The Retinas of Predatory Birds Such as Hawks ____