London, August 12 : A team of scientists has glued electronic sensors to the heads of 58 wild elephant seals to track changes in the temperature of the Antarctic seas.

Mounting evidence that the Southern Ocean is warming more rapidly than expected has fuelled interest in temperature dynamics and sea-ice formation rates near the South Pole.

But thick sea ice cover makes it virtually impossible to collect data by conventional methods such as buoyant floats and research ships.

London, August 12 : Scientists have developed a new technique that can analyze DNA from sharks'' teeth, which would help conservation biologists to study endangered species of the poorly understood fish.

Until now, scientists have not been able to extract DNA from old shark samples, as the fish do not have the bony skeletons that are essential for conventional methods.

Although biopsies of flesh from live sharks are possible, the fish are generally quite uncooperative research subjects.

London, Aug 12 : The mouth watering chicken tikka is believed to be a Punjabi dish, but contrary to what people think, the ‘sumptuous’ creation dates back to the Mughals.

The dish might have been invented around 500 years ago in the Punjab region on the borders of what are now India and Pakistan, but its origin dates back to 5,000 years ago, when tandoor clay ovens were invented.

The tikka came about early 1500s, when Punjab was conquered by Babur, a descendant of Mongol warlord Genghis Khan.

London, August 12 : French scientists have come up with an explanation for why the Earth’s inner core of solid iron behaves differently in the western hemisphere and the eastern hemisphere, transmitting seismic waves faster in the eastern side than in the west.

Julien Aubert and his colleagues at the French national research centre''s Institute of Geophysics in Paris say that this anomaly may be due to subterranean "cyclones" found in parts of the liquid iron outer core.

The researchers say that such swirling cyclones drag cooler material from the top of the outer core right down to the bottom, where iron is gradually crystallising onto the solid inner core.

London, Aug 12 : Scientists are uncovering the deepest secrets of Antarctic waters by recruiting elephant seals that collect data for them.

Growing evidence that the Southern Ocean is warming more rapidly than expected has fuelled interest in temperature dynamics and sea-ice formation rates near the South Pole.

However, thick sea ice cover makes it virtually impossible to collect data by conventional methods such as buoyant floats and research ships.

London, Aug 12 : Forget getting painful botox jabs in a bid to reduce those pesky wrinkles, for researchers at the University of Massachussetts Lowell Nanomanufacturing Center have developed a skin cream that can do the same trick.

Botulinum toxin or botox is injected by cosmetic surgeons to paralyse muscles and decrease the appearance of wrinkles, reports New Scientist.

However, this method can be painful and even cause tissue damage leading to problems such as drooping eyelids.

Now, Robert Nicolosi and Jonathon Edelson from the university have developed a skin cream that could help you get rid of the problem.