Plants normally have only bisexual flowers. Some species, however, also produce male flowers to make the dispersal of pollen more efficient.

The controversial Human Genome Project -- a collaborative effort to decode and understand the human genetic code in chromosomes -- is already showing results and is likely to be completed ahead of

Karoshi -- death from overwork -- has struck corporate bigwigs in Japan. Now, white-collared workers and women too are being affected and a worried labour ministry has announced a set of initiatives

After being spewed into the atmosphere for the past 30 years, mainly through the use of fire extinguishers, ozone-depleting halon concentrations are now decreasing (Nature, Vol 359 No 6394). Although

A bacterium that causes botulism can be used to temporarily banish wrinkles (Asian Wall Street Journal, Nov 9, 1992). While treating a patient with dystonia -- a condition characterised by severe

Technological advances allow biologists to sit in their labs and monitor animal movements.

Spacecraft Ulysses passed the largest planet in the solar system and picked up a rich haul of information before heading for the sun on its primary mission.