Question

Corpus callosum occurs in the brain of
(a)Pigeon
(b)Frog
(c)Crocodile
(d)Elephant

Answer 1

Hint: The brains of that animal, rank among the most noteworthy for outright and relative mass, cortical expansion. Their cerebrums show a feature that is comparable to those of some of the Cetaceans and the Great Apes, including humans.

Complete answer:
The nerve pathway is present only in placental mammals and hence the sole elephant from the above options classifies during this category. The Corpus callosum is found under the cerebral cortex in the brain. Frog, pigeon, crocodile are avians, amphibians, and reptilians respectively. So corpus callosum is absent in these three.

Additional information:
Elephants are vertebrates of the Elephantidae and subsequently the biggest existing area creatures. Three species are right now perceived: the African bush elephant, the African forest elephant, and therefore the Asian elephant. Elephantidae is that the main enduring group of the request Proboscidea; extinct individuals incorporate the mastodons. The Elephantidae additionally contains a few now-extinct gatherings, including the mammoths and straight-tusked elephants. Different types of features of all elephants include an extended proboscis called a trunk, tusks, large ear flaps, massive legs, and hard but sensitive skin.

So the correct answer is ‘Elephant’.

Note: Elephant ears have thick bases with thin tips. The ear flaps, or pinnae, contain numerous veins called vessels. The elephant is a warm-blooded animal, the fluid flows into the capillaries, helping to release excess body heat into the environment. This occurs when the pinnae are still, and therefore the animal can enhance the effect by flapping them. Larger ear surfaces contain more capillaries, and more heat is often released. Of all the elephants, African bush elephants sleep in the most well-liked climates and have the most important ear flaps. Elephants are equipped for hearing at low frequencies and are generally touchy at 1 kHz.