biological sciences Frog, out of the well The frog, Odorrana tormota, is the only animal that can manipulate its hearing system to select particular frequencies. It helps the males to call and woo females. The system in frogs is also being used as a model for hearing aids. The rare amphibian may have evolved its hearing talent out of necessity, since its environment is so noisy,

The time is appropriate for the CTG, NGOs, local communities and non-profit organisations in Bangladesh to collaborate more effectively and start working together towards a "cleaner Dhaka city," or to at least protect wetlands in Dhaka from the pressure of development to ensure desirable biodiversity. This writer was quite alarmed during a recent phone conversation with a relative, who was visiting Boston. It was alarming because my relative said that there were hardly any wetlands in Bangladesh that may be considered active.

The time is appropriate for the government NGOs, and local communities and non-profit to collaborate more effectively and start working together towards a cleaner Dhaka, and to protect wetlands in and around Dhaka from the pressure of development to ensure biodiversity. This writer was quite alarmed during a recent phone conversation with a relative, who was visiting Boston. It was alarming because my relative told me that there were hardly any wetlands in Bangladesh that may be considered active.

KOCHI: Here is happy news for the greens. Aiming at creating an awareness in society about the bio-diversity of Mangalavanam, the Department of Forest will set up a Nature Study Centre at the sanctuary.

Students, researchers and nature-lovers can make use of the centre once it becomes operational. "Mangalavanam has a vast mangrove vegetation.

Though many people want to study about them, there is no adequate facility inside the Mangalavanam at present.

CRITICAL food shortages and growing demand for bio-fuels and hydro-electricity, due to high fossil fuel prices, rank among the greatest threats today to the preservation of precious wetlands worldwide as farmers and developers look for new areas for agriculture, energy crop plantations and hydro dams.

NEW DELHI

A controversy is likely to break out in Jahangirpuri area of the city after Delhi government gave its nod to convert one of the largest water bodies in the city for building residential colonies. The government has identified the land as "not fit to be restored for water purpose', a move that doesn't gel with the "Green Delhi' plans of Sheila Dikshit-led Congress government.

GUWAHATI, Aug 3