secretive tadpoles

Scientists unearth Indian dancing frog's secretive tadpoles

IANS |   Mar 31,2016 , 10:37 PM IST

   

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New Delhi: From the streambeds in the Western Ghats of India, an international team of scientists has unearthed a species of tadpole that burrows through sand and lives in total darkness until they fully develop into froglets. The tadpole of the Indian Dancing Frog family, Micrixalidae, was the only family of frogs and toads for which the tadpoles remained a mystery.

They were discovered and documented by a group of scientists from the University of Delhi, University of Peradeniya in Sri Lanka, and Gettysburg College in US. "We provide the first confirmed report of the tadpoles of Indian Dancing Frog family. These tadpoles probably remained unnoticed all these years because of their fossorial nature, which in itself is a rare occurrence in the amphibian world," said S.D. Biju, professor at the University of Delhi.

Genetically identified as Micrixalus herrei, these tadpoles are endowed with muscular eel-like bodies with extensive tail musculature that aids them in underground movements. The findings, published in the journal PLOS ONE, showed that these tadpoles inhabit interstitial spaces within sand and make gravel beds of forest streams, starting from very early to late tadpole stages.  

Their eyes are covered with skin, which facilitates burrowing through gravel beds as well as provide them protection from abrasion. They lack teeth but have well-serrated jaw sheaths, which may help prevent large sand grains from entering the mouth while feeding and moving through sand. 

Their gut contains small sand grains together with decaying organic matter, which acts as a nutrient source.Presence of lime sacs or endolymphatic sacs was also found in these tadpoles, which acts as a source of calcium carbonate for tadpoles and juveniles. The Indian Dancing Frogs were also found to typically wave their legs as a territorial and sexual display while sitting on boulders in streams. 

comment:-

secretive tadpoles

 

couldnot have survived darwins theory to get deep into sand and gravel;over generations ,to prove  survival of fittest theory ;

to get skin to cover their eyes and other special features as per survival of fittest theory could have taken many generations ,and they would not have survived 

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poor Darwin MAY BE ROLLING IN HIS GRAVE 

 

ANY WAY AS PER DARWIN BELIEF THERE IS NO GOD

POOR MAN CONDEMNED TO ETERNITY AND MORE INSIDE HIS GRAVE[inside a church-at Westminster Abbey] RUMINATING HIS MISTAKES .will he survive his grave inside the church to prove something again?