Frogs - How Amazing Are They? - E-book - ePub

All ?f u? are familiar with th?m. Th?? are easily available in th? ??nd?, ?tr??m?, l?k?? ?t?. during the r?in? season th?ir croaking sounds ??n be ???il? heard which disturbs ?ur peace. W? ?r? t?lking ?b?ut th? fr?g?. Frogs belong t? the ?h?lum Ch?rd?t? ?nd class Am?hibi?. Th?? h?v? th? potential t? liv? on w?t?r as w?ll ?? on land. Th?? are ?nur?n which means th?t they ?r? tailless and b?l?ng to th? order Anura.
Majority ?f th? fr?g? ??????? l?ng hind limb?, w?bb?d digits, ?h?rt b?d?, ?r?truding eyes ?nd n? t?il. Fr?g? h?v? gr??t ??w?r? of jum?ing fr?m h?r? ?nd th?r? whi?h i? governed b? their ?h?rt b?d? ?nd l?ng hind l?g? which h?l? in ??rf?rming jum?ing. Th?? have a permeable ?kin ?nd are ??mi-??u?ti?, ?r?f?r to liv? in th? humid ?r??? but ??n ???il? walk ?n l?nd. Th?? ?r? ?vi??r?u? and lay their ?gg? in ponds and lakes.
The larvae that hatch ?ut ?f the ?gg? ?r? ??ll?d tadpoles whi?h ?r? ?h?r??t?riz?d b? the ?r???n?? of gill? ?nd th?? ??m?l?t? th?ir d?v?l??m?nt in w?t?r. Adult frogs are carnivorous and f??d ?n g??tr???d?, ?nn?lid? ?nd arthropods. Th?? are easily n?ti??d during their m?ting ?????n b? th?ir ?r??king sound. Fr?g? ?r? easily available in th? tropic ?nd subarctic r?gi?n? but m?j?rit? ?f the species are f?und in the tr??i??l r?in f?r??t?.
Th?? f?rm th? diverse gr?u? ?f v?rt?br?t?? and about 5, 000 ????i?? are kn?wn till ?r???nt. Some ????i?? are however ?n the v?rg? ?f ?xtin?ti?n. Fr?g? ?r? diff?r?nt from the toads as th? t??d? prefer t? liv? in dr? habitats ?nd thi? di?tin?ti?n is m?d? ?n th? basis ?f ??nv?rg?nt evolution. The w?rd fr?g has been d?riv?d from an Old Engli?h w?rd fr?gg? whi?h m??n? 'to jum?'.