A new study in PNAS of the side-blotched lizard (Uta stansburiana) may bolster the idea that 'morphs', morphologically distinct types often found within species, could be the raw material for speciation.

Previous research has shown that competition among male side-blotched lizards takes the form of a rock-paper-scissors game in which each mating strategy beats and is beaten by one other strategy. Males with orange throats can take territory from blue-throated males because they have more testosterone and body mass. As a result, orange males control large territories containing many females.

People who are usually happy, enthusiastic and content are less likely to develop heart disease than those who tend not to be happy, according to a purely observational study that needs to be confirmed with clinical research.

Over a period of ten years, researchers followed 1,739 healthy adults (862 men and 877 women) who were participating in the 1995 Nova Scotia Health Survey. At the start of the study, published in the European Heart Journal, trained nurses assessed the participants' risk of heart disease and, with both self-reporting and clinical assessment, they measured symptoms of depression, hostility, anxiety and the degree of expression of positive emotions, which is known as "positive affect".

Scientists have known that newly acquired, short-term memories are often fleeting, but a new study of Drosophila in Cell suggests that there is a good reason for that kind of forgetfulness. An active process of erasing memories may be as important as the ability to lay down new memories.

"Learning activates the biochemical formation of memory," says Yi Zhong of Tsinghua University and Cold Spring Harbor Laboratory. "But you need to remove memories for new information to come in. We've found that forgetting is an active process to remove memory."

A recent study of marine mammals by University of Florida aquatic animal health experts has revealed that dolphins may be the ideal model for studying cervical cancer in humans.

"We discovered that dolphins get multiple infections of apillomaviruses, which are known to be linked with cervical cancer in women," said Hendrik Nollens, a marine mammal biologist and clinical assistant professor at UF's College of Veterinary Medicine today (Feb. 18) at the annual meeting of the American Academy for the Advancement of Science. "Dolphins are the only species besides humans that we know of that can harbor coinfections, or infections of multiple papillomavirus types, in the genital mucosa."

 Scientists searching for alternatives to synthetic pesticides say volatile organic compounds (VOCs) emitted by the fungus Muscodor albus may offer a biologically based way to rid certain crops of destructive pests. Reseachers from the USDA's Agriculture Research Service laboratories put the idea to the test in three different studies by pitting Muscodor against potato tuber moths, apple codling moths and Tilletia fungi that cause bunt diseases in wheat.

Ships blowing off steam are aiding researchers who are studying how manmade particles might help mitigate climate change. New results from modeling clouds like those seen in shipping lanes reveal the complex interplay between aerosols, the prevailing weather and even the time of day the aerosol particles hit the air, according to research to be presented Saturday morning at the American Association for the Advancement of Science's annual meeting.

This is a science site and not a political or economics one and therefore we have poor grasp of things we know nothing about, like how missing cigarette tax revenue can possibly be responsible for bloated governments being unable to pay their bills.

But apparently it is and a new method of securing cigarette tax stamps from counterfeiting and falsification could save nations otherwise losing more than $50 billion annually - which, like 'jobs saved' is a number you can believe if you want, because someone said it - that's all according to a group of companies that make holograms designed to ... prevent counterfeit cigarette tax stamps.

The New Cosmetic Surgery Journalism Prize will be awarded by DDr. Heinrich for outstanding reporting on New Cosmetic Surgery techniques.

That's right, journalists. You can win a prize from a cosmetic surgery company if you simply write about the techniques used by their cosmetic surgery company.   Sure, it's like being a public relations flack but since it's a prize rather than a paid puff piece you won't feel dirty.

They want your contribution to be be well-researched and include general legal disclaimers and information, like that cosmetic surgery is not actually taught in public hospitals for a reason.