Water is one of the most essential of all natural resources. The supply of potable fresh water has assumed critical dimensions both in terms of quality and quantity. Large stretches of rivers have no water and are heavily polluted giving rise to grave environmental consequences. Ground water is depleting fast and also being severely [...]

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 One morning I was sitting in my verandah sipping a cup of tea which my wife had so fondly prepared when suddenly I was startled rudely by a strong commotion of dogs barking outside. It appeared that my neighbours helper had just discarded a piece of bread. Rest was bedlam. This set me thinking and [...]

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Theme paper by Dr. Yashpal Singh
The Elephant is an integral part of India’s culture. Mythology and history are replete with instances of the pristine glory of the Elephants. Associated with rain and thunder, the elephant was mount of ‘ Indra’ the Hindu God of war. Legend also has it that the elephant took birth from [...]

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I still remember these words in the vivid recollection of my childhood memories. I then remember me and my brother and sisters running outdoors to have a glimpse of that magnificent creature that strolls with a gait symbolic of sheer regality – slow, steady and firm, the mahout and him enjoying a relationship, the [...]

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The climate and geographical diversity of India, gives it a rich diversity of birds. With interesting behavioral features huge flocks of local and migratory birds are the principal attractions in the lakes of this beautiful country. Birds play a very important role in maintaining ecological balance. Our country boasts of more than 1250 species of [...]

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Biological extinction has been a natural phenomena in geological history but the rate of extinction was probably one species every thousand years. Evolution causes populations to adapt to the ecological changes brought about by changing climates and the environment but some species may not possess the genetic diversity to withstand such changes. The sabretoothed cats [...]

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Biodiversity is of immense value. It plays a very significant role in enriching the soil, maintaining the water and climate cycle, humidity precipitation and recycling and conversion of waste material into nutrients. Food, medicine and raw material for industrial and house hold purposes are obtained from many living resources. Conservation is therefore imperative, conservation for [...]

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Existing for over 500 million years, the coral reefs, are the marine equivalent of the tropical rain forests. Inhabiting less than about 0.17 % of the total ocean floor, they harbour more than 25 % of all marine species and are responsible for 12 % of the global marine fish catch. Found mostly in shallow, [...]

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Of all the species known to mankind, more than 40 to 50 % are harbored in areas covered by just about 7 % of the world’s area – the tropical rainforests – a region also of heavy rainfall. Tropical rain forests are spread through north eastern India ( Khasi Janitia hills and the lower Himalayan [...]

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Evolution has proceeded from simpler to complex organisms and evolutionary history has provided ample evidence to establish that it has also proceeded in the direction of increasing Biological diversity. Mutations and recombinations are constantly producing new genotypes and providing species with a constant input of physical and chemical variations, some of which improve the efficiency [...]

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