Natural Heritage


Fig 1-

Distribution: The Glory Lily grows throughout India, upto an elevation of 1800m in low jungles.


Ducks are water birds that have a heavy short- legged body and legs adapted for wading in the waters. This group is the largest of the waterfowls and is also the most diverse among them. Ducks are characterized by their small body size, shorter necks, narrower wings which are more pointed and wing beats which are more rapid and a horny tipped bill. The male and fema

Storage capacity and rainfall pattern in the reservoirs in Chennai from 2015 to 2019

In the month of May, June and July, Chennai city usually experiences the searing heat due to the summer season. A decade ago, even though the temperature was as high as 38°C - 45°C (Highest recorded - 45°C in 2003), drinking water supply for the city was not disrupted in the way it experienced in the summer of 2019. The well-known reason is there was more greenery in every 100 to 200 m of vicin

Groundwater Table in Chennai – Time to realize and act

Dr. Srinivasan Gopalakrishnan

Depletion of groundwater in Chennai is occurring at an alarming rate and the situation is grave. The city’s metropolitan area, suburbs and the adjoining towns are facing a severe groundwater shortage every summer. According to a report, the combined storage in Ch

Squirrel in the House



Barely 6 inches long, with a striped body, beady eyes, pointed nose and a bushy tail, squirrels are fascinating to watch. And if you have been as lucky as I have to rear one for nearly two years, you will become a slave to their impish charm. Every tree abounds with squirrels. Jumping, leaping, hanging upside down,

The Ecological Heritage Sites of Chennai – Wetlands


Wetlands are areas inundated or saturated by groundwater at a frequency and duration sufficient to support the prevalence of vegetation typically adapted to the saturated soil condition. It includes marshes, swamps (jheels), lakeshores, peat lands, wet meadows and estuaries (World Wide Fund-India, 1987). Around the world,

Deep Sea under Peril

R. Sabesh

Three - fourths of the earth’s surface is covered by the sea, of which only 7 - 8% is the coastal area and the rest is deep sea. Though the geographical area of deep sea is vast, our knowledge and understanding about the deep-sea environment is limited, due to inaccessibility and the requirement of very expensive and sophisticated ins

Know Your Animals…

Jayanthi Rengun

Fig 2

Cardamom – The Queen of Spices


Cardamom, often called ‘Grain of Paradise’, is native to India. It is a pungent, aromatic herb, first used around the 8th century. Cardamom, rightly termed, as the Queen of Spices, is a highly priced exotic spice. The history of Indian cardamom is as old as human civilization. Cardamom was the most popular sp

Forgotten Cereals

Dr. P. Sudhakar

Millets were first cultivated in Asia, Africa and Europe, in pre-historic times. Being rich in carbohydrates, proteins and minerals, they were the staple food for the poor of Rome and Europe during the middle ages. Though crops like rice, wheat, maize, etc., have gained importance; some regions in India still cultivate millets.