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Study reveals dramatic loss of genetic diversity among Columbia River Chinook salmon

Study reveals dramatic loss of genetic diversity among Columbia River Chinook salmon

Science
Jan. 10 (UPI) -- Genetic diversity helps species survive and adapt to changing environmental conditions. Unfortunately for the Columbia River Chinook salmon, the species has lost nearly two-thirds of its genetic diversity.Scientists at Washington State University collected and analyzed DNA samples from salmon found in the Snake and Columbia rivers. They compared their genome to DNA samples from salmon bones dating to 7,000 years ago.The results -- published this week in the journal PLOS One -- show the salmon has experienced a dramatic decline in genetic diversity.Researchers aren't sure what's driving the decline but believe the arrival of European settlers in the 1800s played a significant role."The big question is: Is it the dams or was it this huge fishing pressure when Europeans arriv...
Dramatic video of Ecuadorian volcano's eruption released

Dramatic video of Ecuadorian volcano's eruption released

World
Dec. 20 (UPI) -- A British photographer captured time-lapse video of Ecuador's Reventador volcano spewing lava and ash.The dramatic video in the Amazonian Andes mountains by Dr. Richard Roscoe was produced over three days as the volcano erupted earlier this month. The volcano -- its name means "troublemaker" -- is in a remote corner of the Cayembe Copa Ecological Reserve, an Ecuadorian national park, and local communities are not regarded as at risk.Geologists say Reventador is proceeding through an explosive phase, the BBC reported on Wednesday.It last erupted in 2002, causing damage to a nearby valley and its infrastructure.Let's block ads! (Why?) World News - UPI.com
X Factor's Lucy Spraggan looks UNRECOGNISABLE following dramatic weight loss

X Factor's Lucy Spraggan looks UNRECOGNISABLE following dramatic weight loss

Entertainment
The aspiring singer first graced our screens when she auditioned for The X Factor in 2012 with self-penned hangover anthem Last Night.And while she had to bow out of the live shows due to illness, Lucy is still making a bid for superstardom.However, it's not the 25-year-old's music that's causing a stir, but rather her dramatic weight loss transformation.WennX FACTOR STARLET: Lucy Spraggan looks different following her dramatic weight lossReality TV stars weight loss transformations  Amazingly, these reality TV stars have lost more than 40st between them... all thanks to healthy eating and exercise Jennifer Ellison from Brookside loses three stone in weight InstagramPROUD WIFE: The singer's partner Georgina shared the transformation updateThe starlet's wife Geor