Last May, Arizona got a new museum that focuses on something that many people find disgusting: poop. Not just any poop, but really old poop. So old, in fact, that it has turned into a fossil. The Poozeum is a collection of thousands of examples of "coprolites" - fossils made of poop.
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Scientists have discovered that many species of birds-of-paradise have feathers that glow. Birds-of-paradise were already well-known for their very colorful feathers and the fancy dances they use to attract mates. The discovery suggests that the birds are even more striking than we knew.
US President Donald Trump has been using special orders to make big changes to the US government. But on Sunday, he announced an order against a tiny target - the US penny. The change, if it happens, could have important effects.
As humans, we can think about what other people are thinking, and understand that their ideas might be different from ours. Scientists call this "theory of mind". An important question is whether animals can do the same. A recent experiment suggests that bonobo apes may share this ability.
In just two weeks, US President Donald Trump's government has taken a large number of strong actions that are raising concerns around the world. The actions have left many shocked and uncertain about what the future will bring.
Three young scientists have captured the first photos of a Mount Lyell shrew. The tiny animal is the only mammal in California that hadn't been photographed alive - until now. The scientists hope their images will help raise awareness about the little-known species.
On Tuesday, an American company called Boom Supersonic made history when its test jet broke the sound barrier. It's the first privately built supersonic jet to go faster than the speed of sound.
President Donald Trump took action Monday to keep TikTok running in the US. By law, the app was banned, starting Sunday, and TikTok went offline temporarily. Now Mr. Trump says he's given the company 75 days to find a new owner. It's not clear that Mr. Trump has the power to change the law.
On Monday, Donald Trump was sworn in as the 47th president of the United States. He returned to the White House after being voted out four years ago. Mr. Trump's inauguration marks a huge change in US politics and leadership after four years with Democrat Joe Biden as president.
The Los Angeles area is battling major wildfires that have destroyed thousands of buildings, forced tens of thousands of people from their homes, and led to at least 24 deaths. The situation could get worse this week, as strong winds return to the area.
A huge winter storm blasted through much of the United States on Sunday and Monday. The storm brought snow, ice, and strong winds, leaving hundreds of thousands of people without power. The dangerous conditions also led to traffic problems, closed schools, and canceled flights.