Question
Biology Question on Frogs
The phenomena of spawning and amplexus are encountered in
Rana hexadactyla
Pavo cristatus
Felis domestica
Naja naja
Rana hexadactyla
Solution
With the onset of rainy season, frogs emerge out of aestivation and immediately start breeding which lasts from July to September. Males gather in appropriate shallow waters and start croaking to attract females for mating or copulation. The male mounts upon the back of the female and grasps firmly around her thorax by his forelegs. The roughened nuptial pads on the bases of inner? fingers of male are fully developed during breeding season and help him in holding the slippery female. This sexual embrace, called amplexus, may continue for several days until the female deposits several hundred ova or eggs through her cloaca into water. This process of releasing the eggs is called spawning. The male also discharges seminal fluid containing spermatozoa over eggs to fertilize them, There is no parental care in frog.