Question

Webbed toes occurs in
(A) Gallus
(B) Anas
(C) Ploceus
(D) Choriotis

Answer 1

Birds have developed different morphological changes for their survival and assistance in water. One of these modifications includes modification of feet. The webbed feet are observed in birds who like in water. The webbed feet are ideal and apt for the birds that use to swim over or under the surface of the water.

Complete answer:
To solve this question we must know about the significance of webbed toes and in which kind of animals they are found.

Certain birds have webbed feet for their swift movement over the water. Such birds mainly use their webbed feet for the purpose of paddling under the water so that the body moves easily over the water surface. In this process as the bird uses to pull their feet in the opposite direction of the water stream, the toe stretches separately, and this altogether causes the webs to stretch out. The webbed feet push more water as compared to the foot of the bird. Foot of the bird is designed in a manner so as to get help in the navigation of their environment and search for the food they require.

Anas birds have webbed feet which allows them to make their movements over the surface of the water with ease. The webbed feet also assist the Anas to walk over the smooth or slimy surfaces.

Gallus- Junglefowl have perching or clinging feet.

Ploceus- It is the genus of the birds belonging to the weaverbird family. They have clinging feet which help them hold the branches of trees.

Choriotis-It is also known as The Great Indian Bustard. They have long legs and feet adapted for running.

Thus the correct answer is option ‘B’.

Note: The birds do not have more than four toes and are categorized as digitigrade animals, that is these animals are capable of walking on their toes, rather than their whole foot. Birds like owls, hawks, eagles, etc. have stronger feet, longer claws which assist them to capture, grab their food or prey. Some of the birds utilize their feet for walking, running and roosting.