A new species of ground beetle found in Antarctica (left) is named Antarctotrechus balli. The three other beetles are close modern relatives of the ancient species. The line drawings show similarities between the beetles. Courtesy of Allan Ashworth/North Dakota State University hide caption
Christmas lights and decorations adorn a house in Auckland, New Zealand, in 2009. Phil Walter/Getty Images hide caption
In this photo taken with a fisheye lens, riders go down the world's tallest water slide called "Verruckt" at Schlitterbahn Waterpark in 2014. Charlie Riedel/AP hide caption
Stanford researchers assessed students from middle school to college and found they struggled to distinguish ads from articles, neutral sources from biased ones and fake accounts from real ones. Gary Waters/Ikon Images/Getty Images hide caption
NASA astronaut Shane Kimbrough shows a pouch of turkey he will be preparing for his crew in celebration of the Thanksgiving holiday, aboard the International Space Station. AP hide caption
A computer illustration of a large asteroid colliding with Earth. (Size may not be to scale.) Such an impact is believed to have led to the death of the dinosaurs some 66 million years ago. Mark Garlick/Getty Images/Science Photo Library RM hide caption
To be clear, this squirrel — photographed in 2008 — is not the one that threw itself at a Chicago alderman's bicycle earlier this month. Taylor L. Riché/Flickr hide caption
An origami elephant on display at the Bronx Zoo. Julie Larsen Maher/WCS hide caption
A judge on the High Court in London granted a dying British teenager's request to be cryogenically frozen. The ruling was last month, but media coverage was restricted while the girl was still alive. Tim Ireland/AP hide caption
President Barack Obama and German Chancellor Angela stressed the importance of working toward political and economic unity Thursday, during a news conference at the Chancellery in Berlin. Carsten Koall/Getty Images hide caption
A gray jay sits on the tips of skis in 2006 in Avon, Colo. Doug Pensinger/Getty Images hide caption
A man walks past the logo of the COP22 international climate conference on Nov. 9 in Marrakech, Morocco. Fadel Senna/AFP/Getty Images hide caption