Washington, Nov 4 : When it comes to settling disputes over access to fertile females, antelopes click their knees to ward off the competition, according to a new study.

The study, conducted on eland antelopes, has revealed the dominance displays used by males to settle disputes over access to fertile females, without resorting to genuine violence.

Led by Jakob Bro-Jorgensen from the Zoological Society of London and Torben Dabelsteen from the University of Copenhagen, researchers studied antelopes within a
400km2 area of Kenya.

They discovered that the males (bulls) use some signals to make competitors aware of their fighting ability, based on three different factors, body size, age and aggression.

Washington, Nov 4 : Researchers at Rensselaer Polytechnic Institute in the US have developed a new antireflective coating that boosts the amount of sunlight captured by solar panels at all angles, which would make scientists realize the dream of high-efficiency, cost-effective solar power.

The nanoengineered coating solves two major hurdles facing solar energy.

It boosts the amount of sunlight captured by solar panels and allows those panels to absorb the entire solar spectrum from nearly any angle.

Washington, Nov 4 : A new research by ecologists has determined that natural selection favors only some species based on their rate of metabolism, meaning how fast a species consumes energy, per unit mass, per unit time.

A team from the University of California (UC) Riverside undertook the research.

The researchers studied 3006 species, the largest number of species ever analyzed in a single study. The species list encompasses much of the range of biological diversity on Earth – from bacteria to elephants, and algae to sapling trees.

To the researchers’ surprise, they found that the mean metabolic rate of the species at rest fell on a narrow range of values – 0.3 to 9 Watts per kilogram.

London, November 4 : Japanese researchers have successfully cloned healthy mice from cells derived from dead mice, which had been frozen for 16 years.

Teruhiko Wakayama, of the RIKEN Center for Developmental Biology in Kobe, says that the breakthrough has raised the possibility of cloning endangered species from old carcasses.

He says that this advancement even indicates that researchers may someday be able to resurrect extinct animals frozen in permafrost, such as the woolly mammoth.

"It would be very difficult, but our work suggests that it is no longer science fiction," New Scientist magazine quoted him as saying.

Washington, Nov 4: Scientists have described new advances in developing new fuels like “green gasoline,” “designer hydrocarbons,” “the ice that burns,” and other sources that can help power an energy-hungry world into the future.

These advances have been described in a series of podcasts titled “New Fuels”, an initiative by American Chemical Society.

Part one of “New Fuels” begins by describing the vision of automobile pioneer Henry Ford, who predicted almost 70 years ago that cars of the future would run on ethanol. That has become the No. 1 biofuel today — a genre of fuels produced from plants.

New Delhi - India's first moon mission Chandrayaan-1 entered lunar space early Tuesday for its final journey into lunar orbit, news reports said.

"The operation to put Chandrayaan into lunar space went off very well. The complex manoeuvre was carried out around 5 am (2330 GMT Tuesday) ... to place the unmanned spacecraft 380,000 kilometres away from earth and 1,000 kilometres from the moon," Indian Space Research Organization (ISRO) director S Satish was quoted as saying by IANS news agency.