Rana tigrina, the common Indian bull frog, generally lives in or near water but in rains it may be found far away from its natural habitat, the aquatic home. It lives near water probably- (i) to carry out the cutaneous respiration by keeping the skin moist as soon as it gets dry and (ii) to escape from the man and [...]
In this article we will discuss about the external features of Indian frog with the help of suitable diagrams. Shape and Size: Besides aerial mode of life, frog also leads aquatic mode of life. Therefore, it has streamlined body which is the characteristic of the aquatic animals and assist in swimming in water. The two ends, the anterior and the [...]
The nervous system includes: (i) A central nervous system comprising the brain and spinal cord, (ii) A peripheral nervous system consisting of cranial and spinal nerves arising from the brain and spinal cord respectively and (iii) An autonomic nervous system made of two ganglionated sympathetic nerves. The autonomic nervous system is often regarded as a part of the peripheral nervous [...]