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Without genetic variation, asexual invasive species have to find other ways to adapt

Without genetic variation, asexual invasive species have to find other ways to adapt

Science
July 30 (UPI) -- Invasive all-female weevils pass along epigenetic changes to their offspring, helping them adapt to new environs, according to a new study. Across most of the animal kingdom, an organism's ability to adapt and evolve is largely dependent on genetic variation. Sufficient genetic diversity makes it more likely that favorable traits will emerge and proliferate as the fittest specimens populate subsequent generations. Some species, however, reproduce asexually, which means their genetic reservoir is limited. So how do they adapt to new environs? To find out, researchers collected specimens of two asexually reproducing, invasive weevil species, Naupactus cervinus and N. leucoloma, from Florida, California and Argentina. Despite sharing the exact same DNA, research...
‘She really did find heartbreak impossible’: Documentary explores the life of Caroline Flack

‘She really did find heartbreak impossible’: Documentary explores the life of Caroline Flack

Entertainment
In the weeks before she died, Caroline Flack had met with documentary makers in the hope of reclaiming a story she had felt on the periphery of, despite it being hers.A successful presenter, Flack was a former X Factor and Xtra Factor host, a Strictly Come Dancing winner and the face of Love Island, one of the biggest TV phenomena of recent years. But in the early hours of 12 December 2019, she was arrested on suspicion of assaulting her boyfriend, Lewis Burton, and subsequently charged. Image: The new documentary will share Caroline Flack's story. Pic: Flack family/Channel 4 Image: Pictured as a little girl with her twin sister Jody and mum Christine Flack in the 1980s. Pic: Flack family...
Archeologists find intact ceremonial chariot near Pompeii

Archeologists find intact ceremonial chariot near Pompeii

Technology
Officials at the Pompeii archaeological site in Italy have announced the discovery of an intact ceremonial chariot, one of several important discoveries made outside the park following an investigation into an illegal digBy COLLEEN BARRY Associated PressFebruary 27, 2021, 5:35 PM• 2 min readShare to FacebookShare to TwitterEmail this articleMILAN -- Officials at the Pompeii archaeological site in Italy announced Saturday the discovery of an intact ceremonial chariot, one of several important discoveries made in the same area outside the park near Naples following an investigation into an illegal dig.The chariot, with its iron elements, bronze decorations and mineralized wooden remains, was found in the ruins of a settlement north of Pompeii, beyond the walls of the ancient city, parked in ...

During Covid, some working mothers find a silver lining: more time with their children

Finance
By almost every measure, the coronavirus crisis has been devastating for working women.More women work on the front lines and are at a greater risk of contracting Covid-19, putting themselves and their families in jeopardy.They have reported increased anxiety and stress as a direct result of new work routines and concerns about job security. At the same time, they have borne the brunt of job losses or had to reduce their hours or take a leave from work in order to take on additional duties at home.  More from Personal Finance:School holidays are particularly challenging for working parentsA return to the office may be coming as vaccinations increasePandemic pushes millions from the labor forceAs women, particularly mothers, exit the workforce, they are also leaving...
Coronavirus: Bat virus hunters find new evidence

Coronavirus: Bat virus hunters find new evidence

Science
Getty ImagesScientists say coronaviruses related to Sars-CoV-2 may be circulating in bats across many parts of Asia.A virus that is a close match to the Sars-CoV-2 virus, which causes Covid-19, has been discovered in bats at a wildlife sanctuary in eastern Thailand.The researchers predict that related coronaviruses may be present in bats across many Asian nations and regions. Their discovery extends the area in which related viruses have been found to a distance of 4,800km (2,983 miles).The study is reported in Nature Communications.Writing in the journal, the researchers said the sampling site (Thailand only) and sampling size was limited, but they were confident that coronaviruses "with a high degree of genetic relatedness to Sars-CoV-2 are widely present in bats across many nations and ...