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Do you tend to sneeze when flowers around you bloom during the spring or a cat comes nearby? Well, researchers at the Max Planck Institute for evolutionary Anthropology in Leipzig may have found the cause behind this allergy of yours.

The researchers say this condition could be due to a DNA factor, resulting out of encounters more than 40,000 years ago between humans and their burly cousins, the Neanderthals, or their close relatives, the Denisovans. The gene may have left the present day humans more susceptible to sneezes, itches and other forms of allergies.

Through recent studies, many groups of scientists had been trying to figure out what impact that Neanderthal DNA factor could have on modern humans.

Scientists from Newcastle University in the United Kingdom have gone ahead and proved that praying mantises have 3D vision, which is known as strereopsis. The researchers developed tiny e3D glasses for the bugs and made them wear it. It is an important discovery since until now, 3D vision had only been proved for vertebrates. The journal Scientific Results published the outcomes provided by the team.

Astronomers have combined the age data that they gathered by studying 70,000 stars across the Milky Way galaxy. The outcome of the ages of stars was assembled into the largest ever made galactic map.

Subsequently, the galactic map validated what has been considered the growth path of our galaxy, it commenced in from the mid of the galaxy and moved outwards. The trend was evident in several old stars that were found close to the centre of the disc.

Famous American singer and song-writer Natalie Cole died on December 31, 2015, on the New Year’s Eve at a hospital in Los Angeles. The reason behind the deaths of Natalie Cole is heart failure, revealed her family.

ABC News report that her heart failure was due to idiopathic pulmonary arterial hypertension (IPAH). The famous R&B and jazz star died at the age of 65, her family said.

The famous singer’s family also revealed that the singer underwent a successful kidney transplant in 2009. She was diagnosed with IPAH after her transplant, they said.

A team of researchers in a recent study found that the entire Roman Empire, which has been known for its advanced sanitation, was infested with parasites. The team found that the empire was infested with higher number of human parasites.

The study's author Piers Mitchell, a lecturer of biological anthropology at the University of Cambridge in the United Kingdom, said, “I was very surprised to find that compared with the Bronze Age and Iron Age, there was no drop in the kind of parasites that are spread by poor sanitation during the Roman period”.

Mitchell told Live Science that despite having extraordinary baths and toilets people in Roman times had bad health due to infestation by parasites.

Researchers through a recent study found that women are three times as likely to be involved in same-sex intimacy as men. The research that sheds light on sexuality of the US adults under the age of 45 showed that almost 7% of the population said that they are gay or bisexual as compared to 4% of men.

Researchers noted that the number of people calling them bisexual have dramatically increased in some recent years. It has been found that women are more flexible in their sexual preferences as compared to men.

The findings of the study conducted by the US Centers for Disease Control and Prevention's National Center for Health Statistics are based on surveys from 2011 to 2013. The data provides researchers with an up-to-date look at how the change is playing out in younger people.