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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...
Ashley Judd: I would have died or lost leg without African rainforest ‘heroes’

Ashley Judd: I would have died or lost leg without African rainforest ‘heroes’

Entertainment
Actress Ashley Judd has said she might have died or lost her leg without the help of locals who came to her aid when she suffered serious injuries in a fall in the African rainforest.The Hollywood star, best known for films including Heat and Double Jeopardy, said she broke her leg in four places and suffered nerve damage in the incident in the Democratic Republic of the Congo. Sharing pictures and a lengthy post on social media, Judd, 52, said she spent five hours "in primal pain" on the rainforest floor before having her bones manipulated back into a position so she could be moved. She was then carried for three hours to a dirt road before being transported on a motorbike for six hours.The actress had travelled to the country to take part in a research camp looking into bonobo apes."Frie...
Ireland 13-15 France: France make it two out of two while Ireland remain without a win

Ireland 13-15 France: France make it two out of two while Ireland remain without a win

Sports
Ireland: (3) 13Try: Kelleher Con: R Byrne Pen: Burns, R Byrne France: (10) 15Tries: Ollivon, Penaud Cons: Jalibert Pen: JalibertFrance kept their Grand Slam aspirations intact with a scrappy 15-13 win over Ireland, who remain without a win in this year's Six Nations.Charles Ollivon scored the sole try of the first half after a passage of attacking brilliance from the visitors.Damian Penaud touched down for the second try in the 55th minute.Ireland began to show some fight and Ronan Kelleher's opportunistic try and a Ross Byrne penalty set-up a grandstand finish, but France held on.Far from their free-flowing best, Fabien Galthie's side found two moments of real flair in a match low on quality, and that ultimately proved the difference between the sides.Ireland will cling onto the heart tha...
SpaceX launches record-setting mission without a hitch

SpaceX launches record-setting mission without a hitch

Business
Jan. 24 (UPI) -- Elon Musk's SpaceX launched 143 small satellites into space Sunday morning, setting a world record for the most spacecraft sent to orbit on a single mission. A Falcon 9 rocket carrying the satellites for the Transporter-1 mission lifted off at 10 a.m. EST under partially cloudy skies -- but satisfactory enough for a safe launch -- toward a somewhat rare polar orbit, controllers said. Advertisement With more than a dozen customers, the mission's largest number of satellites came from San Francisco-based Planet (formerly Planet Labs), with 38 SuperDove spacecraft for Earth observation and imaging. [embedded content] SpaceX packed 10 its Starlink communications satellites on board, which were the last to be deployed into orbit at 11:32 a.m. EST. The also rocket carried thre...
Michael Sheen: I gave up OBE to air views on monarchy without being a ‘hypocrite’

Michael Sheen: I gave up OBE to air views on monarchy without being a ‘hypocrite’

Entertainment
Actor Michael Sheen has revealed he gave up his OBE so he could air his views on the Royal Family without being labelled a "hypocrite".The 51-year-old star, who has portrayed the likes of Tony Blair and Sir David Frost on-screen and Hamlet on stage, was made an OBE in the 2009 New Year Honours for his services to drama. But he said the decision to give it back was prompted by researching the history of his native Wales and its relationship with the British state for his 2017 Raymond Williams lecture.Sheen, from Port Talbot, told newspaper columnist Owen Jones that the "crash course" made him realise he could not both deliver his lecture and hold on to the honour."In my research to do that lecture, I learnt a lot about Welsh history," he said. ...