"Amphibians were the first land animals and have a 350-million-year history. They are an environmental barometer and we can analyse the quality of our environment by studying them. We cannot imagine life without frogs. If there are no frogs, it would not be possible to grow anything in our fields," (researcher Dr. Sathyabhama Das) Biju says.

Biju, who works in the Systematics Lab of DU's Environmental Studies department, has been spending seven months a year in the forests of the Northeast and the Western Ghats for the past two decades. It's with this experience that he says the 'dream forest' cover of the Northeast will be lost forever in 20 years' time if urgent interventions are not made.

The scientist then makes a staggering claim: "India is yet to identify 50% of its flora and fauna." Many species of animals will become extinct, he says, without our even knowing they exist.

"For instance, 63 out of 350 amphibian species are no longer found. Amphibian conservation is less about money and more about rapid identification and management and creation of wetland and marshy areas. But we need to do this on a priority," he says. Biju is at present working on 28 new species of frogs which are yet to be described.