Jun 3, 2017

Rare species are leaving behind traces of DNA

Dario Lopez-Mills / AP

Rare species can be difficult to detect, but scientists are looking to environmental DNA (traces of cells from skin, feces, and hair) to pin them down, according to The Scientist.

What they found: There are billions of cells that organisms leave behind in their environment, and they act as a marker of which species have traveled through various areas. So far, scientists studying eDNA have discovered the only cave-dwelling salamander to exist in Europe and Yangtze finless porpoise in China's Yangtze River. Bighead and silver carp in Lake Michigan, and alien and Asian carp in the Illinois and Mississippi rivers were also detected early thanks to eDNA.

Why it matters: The eDNA is helping scientists discover rare species "that are some of the most elusive animals on Earth," per The Scientist. "eDNA represents a revolution over traditional monitoring methods," Kathryn Stewart, a postdoc at the University of Amsterdam who led the study, wrote in an email to The Scientist. It is "perfectly suited for studying this cryptic, elusive, and rare species."

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Trump acknowledges lists of disloyal government officials to oust

Photo: Mandel Ngan/AFP via Getty Images

President Trump on Monday acknowledged the existence of assembled lists of government officials that his administration plans to oust and replace with trusted pro-Trump people, which were first reported by Axios' Jonathan Swan.

What he's saying: “I don’t think it's a big problem. I don’t think it's very many people,” Trump said during a press conference in India, adding he wants “people who are good for the country, loyal to the country.”

Coronavirus only part of the story behind the Dow’s drop

Photo: Andrew Burton/Getty Images

As someone has certainly told you by now, the Dow fell by more than 1,000 points yesterday, its worst day in more than two years, erasing all of 2020's gains. Most news headlines assert that the stock market's momentum was finally broken by "coronavirus fears," but that's not the full story.

What's happening: The novel coronavirus has been infecting and killing scores of people for close to a month and, depending on the day, the market has sold off or risen to record highs.

Bernie's historic Jewish fight

Illustration: Sarah Grillo/Axios

Sen. Bernie Sanders would be the first Jewish presidential nominee of a major American political party — but that history-making possibility is being overshadowed by his conflicts with America's Jewish leaders and Israel's leadership.

The big picture: That's partly because we're all focusing on the implications of Democrats nominating a self-described democratic socialist. It's also because a candidate's religion no longer seems to matter as much to voters or the media, making the potential milestone of a Jewish nominee more of a non-event.