National News

Editor's note 1:13 p.m.: The webcast is over. We'll update the post with an archived video when it becomes available.

How do Native Americans experience discrimination in daily life?

The Arctic is a huge, icy cap on the planet that acts like a global air conditioner. But the air conditioner is breaking down, according to scientists who issued a grim "report card" on the Arctic on Tuesday.

They say the North Pole continues to warm at an alarming pace — twice the rate as the rest of the planet, on average. This year was the Arctic's second-warmest in at least 1,500 years, after 2016.

Ticks sucked the blood of feathered dinosaurs some 99 million years ago, a new study suggests.

Modern ticks are infamous for biting humans and other mammals. But ticks are very ancient, and scientists who study their evolution have long wondered what (or who) the little vampires ate before there were mammals to feed on. Feathered dinosaurs apparently were among the possible creatures on the menu.

Russia's Olympic Committee is backing a plan for Russian athletes to compete under a neutral flag in the upcoming Winter Olympics, saying it will support their participation. Despite doping sanctions against the national team, the Russian group's head says 200 of the country's athletes could wind up going to PyeongChang.

When it comes to the extinction of modern animal species, humans usually end up taking the rap.

The traditional view of the disappearance of the Tasmanian tiger is no different. It follows a well-worn indictment: After the first humans began arriving in Australia (by recent estimates) some 18,000 years ago, the dog-like predatory marsupial began to disappear.

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