The origin of curious ring-like structures that formed half a billion years ago on a seabed in Wisconsin is an ancient unsolved riddle and academics would like you to help them figure it out.

It makes sense, since it was citizen scientist paleontologists that discovered the almost perfectly circular rings some 30 years ago.

Nigel Hughes, a professor of paleobiology in the Department of Earth Sciences at the University of California, Riverside, wants to know if they are the result of a physical process or the activity of an ancient organism - and a cool $500 is in it if you do what the pros cannot.

A team of archaeologists and other researchers hope that an ancient graveyard in Italy can yield clues about the deadly bacterium that causes cholera.

The researchers are excavating the graveyard surrounding the abandoned Badia Pozzeveri church in the Tuscany region of Italy. The site contains victims of the cholera epidemic that swept the world in the 1850s, said Clark Spencer Larsen, professor of anthropology at The Ohio State University and one of the leaders of the excavation team. Archaeologists and their students have spent the past four summers painstakingly excavating remains in a special section of the cemetery used for cholera victims.

Using Twitter can help physicians be better prepared to answer questions from their patients, according to researchers from the University of British Columbia. This challenges common opinion that physicians are reluctant to jump on the social media bandwagon.

Make way for a new color under the sea. The orange tint in Leafy Seadragons and the yellow and purple hues of Common Seadragons is now getting some red: Scientists have discovered a new species named Phyllopteryx dewysea, which means Ruby Seadragon.

The discovery was made while researching the two known species of seadragons as part of an effort to understand and protect the exotic and delicate fish. Using DNA and anatomical research tools, University of California - San Diego graduate student Josefin Stiller and marine biologists Nerida Wilson of the Western Australia Museum (WAM) and Greg Rouse of Scripps Oceanography found evidence for the new species while analyzing tissue samples.

If you are not a person who handles stress well, you are unlikely to enter a high-risk, high-reward field like sales, instead something calmer will be more suitable, even if the pay is much lower. Making less money did not cause your stress level, stress caused you to make less money, according to a new paper by scholars at Ecole Polytechnique Fédérale de Lausanne.

On a biological level, they associated the effects of stress with the release of the hormone cortisol in the Psychoneuroendocrinology paper. 

Human papillomaviruses (HPV) infect epithelial cells in the skin and mucosal tissue and can cause tumor-like growth. Some of these viruses also develop malignant tumors, especially cervical cancer in women, which kills around 4,000 women each year.