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Treaty on Global Warming
In the last week of July 2001, representatives from 178 countries met in Bonn, Germany, for something that is very crucial to their future and the very survival of our planet. They signed a historic agreement that promises to fight global warming. This is the first international treaty of its kind that seeks to check the excesses of human development at the cost of the environment – and the planet itself. Location and date marker for glacier in Jasper National Park in Canada....
The Truth about Zoos
Last week we carried a piece about the relevance of zoos as the last refuge of endangered species. But in India it appears that zoos should be the last place for animals of any sort, let alone the endangered variety. It is no secret that most Indian zoos are in a bad state. Although zoos claim to educate people and preserve species, Indian zoos do neither. Most zoo enclosures are quite small, and labels provide little information....
Tale of the Woolly Mammoth
Almost 20,000 years ago, a group of hunting tribesmen attacked an enormous elephant like animal called the Woolly Mammoth. A fierce battle was fought as the prehistoric tribesmen armed with spears and stone catapults attacked the Mammoth. The Mammoth, almost twice the size of a modern African Elephant, charged and stomped. And as a spear pierced its heart, it gave one last heart wrenching cry and fell to the ground with a loud thud, a sound that reverberated through the mountains....
Tree Rings tell many Tales
Examining ancient trees helps scientists get an amazing picture of Earth’s life, for trees are a record of their life time. By looking closely at the rings of a tree, scientists can not only tell how old it is; they can also tell you that in one summer in 1453 and again in 1601, there were freak cold spells. Tree rings, when radiocarbon-dated give a glimpse of certain aspects of prehistoric times. But what is radiocarbon dating?...
Venice is Sinking
Most people all over the world travel by the road. In a city in Italy however, waterways make up the primary commuting routes. The city of Venice, rich in architectural marvels, is best known for its canals. Unfortunately, this beautiful city of flat-bottomed boats (Gondolas), churches and quaint cobbled streets is sinking and sinking fast. Venice is Sinking Known as the ‘Queen of the Adriatic’, Venice is situated on 120 islands formed by canals in the lagoon between the mouths of the Po and the Piave rivers, at the northern extremity of the Adriatic Sea....
Different Colours of Honey
Honey comes in a variety of colours, flavours and fragrances. While some are amber, others are red, brown or yellow. Have you ever wondered why the honey made by the same bees have different colours? Simple. It is made from different kinds of nectar, or the juice that the bees suck out of flowers. Different flowers have different kinds of nectar. And, all of them have different colours. While the nectar collected from the clover plant is usually light in colour, the amber colour comes from poplar, eucalyptus, marigold and magnolia plants....
The Plastic Menace
Heavy rains lashed Mumbai city a few months ago, the worst rains in decades. The downpour literally brought the city to a standstill. And all because of discarded plastic bags. Plastic bags or polythene bags are essentially made of petro-chemicals. These bags are very thin and in a strong wind can fly away from garbage bins and land on drains and rain-water channels. The bags then clog the drains as they do not let water to flow through....
Roach Sense
Have you ever caught a glimpse of a cockroach scurrying across your kitchen floor? Well, by the time you manage to get your hands on a roach repellent, the cockroach would have disappeared. Not surprising really, considering you are dealing with one of the greatest escape artists in the insect kingdom. Yes, cockroaches or roaches for short, are adept at wriggling out of tight spots. Whether it is a frog lurking behind a bush, or a descending broom, these creatures have an uncanny ability to scent danger....
What is Vetiver Grass?
If you ask someone what vetiver is, chances are that you might get a blank look. But mention the word khus, and most people will be all-smiles. For this grass have the sweetest and coolest fragrance that beat the summer heat. That is why for centuries Indians have had vetiver or khus mats and screens in their homes. A steady sprinkle of water is enough to keep the hot summer wind out. Chrysopogon zizanioides, commonly known as vetiver found abundantly in India, is of Asian origin....
Can Fish Lay Eggs in the Mouth?
There is a kind of fish which does not use its mouth for just eating. It keeps eggs in its mouth instead of its stomach. And, it is the male fish which does it, not the female. Jawfish (Opistognathidae) are paternal mouthbrooders. Mouthbrooding, also known as oral incubation, is the care given a parent by holding its offspring in its own mouth for extended periods of time. A Nest in the Mouth [Illustration by Shridevi] After the eggs are fertilised, the male puts them in his mouth, and carries them around for a month....