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How Do Fish Survive in Icy Waters?
In cold winter months, lakes and rivers freeze over forming ice. Yet, fish and other aquatic animals manage to survive. Animals like seals, penguins, walruses and a wide variety of sea birds are all fish eaters. They live in the Arctic and Antarctic Circle, amidst the icecaps. The land is completely frozen. Yet these animals manage to live in this region. How do they do it? The icy waters of the Arctic and Antarctic Oceans support a great amount of marine life....
Which is the Oldest Living Creature?
The oldest living creature in the world will come as a surprise to you. Many of the animals in the seas, skies, and earth live long lives. Yet the oldest living creature in the world is an immortal jellyfish that has never died. Its family name is Turritopsis Dohrnii. It hails from a class of small animals that live mainly in saltwater. The Dohrnii begin their life journey as larvae with a diameter of no more than 4 millimeters....
What are Volcanic Tubeworms?
In order to raise chicks the farmer keeps the eggs warm and is careful not to crush them. But when scientists in the University of Southern California rear tubeworms, they keep the immature worms very cold and under high pressure. You would think the scientists are being cruel by subjecting these little worms to such extreme conditions. They are not. The worms can thrive only under these circumstances, because they live in the deep sea where it is very cold....
Jellyfish: Fragile Creature of the Sea
A sudden influx of jellyfish, in the Gulf of Mexico in the Atlantic Ocean is worrying both scientists and fisher folk alike. The Gulf of Mexico is bordered on the north by the United States, on the east by Cuba, and on the south and west by Mexico. Fragile Creature of the Sea [Illustration by Sudheer Nath] Jellyfishes are invertebrates (animals without a spinal column). Some are also venomous and their sting can cause paralysis....
Death Threat
March 19: The Olive Ridleys are olive-green coloured sea-turtles that have existed for more than 200 million years. The Gahirmatha beach in Orissa is one of their nesting sites, but unfortunately the fishermen have started catching these turtles for meat to sell in the local market. This has alarmed environmentalists. Nature lover and scientist, BR Ray says that this trend will surely lead to the extinction of the turtles. Thousands of female ridleys travel thousands of kilometres to lay their eggs at Gahirmatha beach....
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