内容摘要：Already, several universities have announced hiring freezes, laid off staff or stopped admitting new graduate students. On Thursday, the Trump administration

Already, several universities have announced hiring freezes, laid off staff or stopped admitting new graduate students. On Thursday, the Trump administration

The bones, fashioned into narrow projectiles for hunting, had beendating back over a century in the Bay of Biscay near Spain and France. Scientists figured the

, but many were small fragments so it was hard to determine their age.Technological advancements in the past decade have now made it possible to date the oldest of the tools to about 20,000 years ago. Scientists found that the bones came from blue whales, fin whales, sperm whales and other species.“Humans and whales have clearly been encountering one another for a long time,” said Vicki Szabo with Western Carolina University, who studies the history of whaling and was not involved with the latest research.

Scientists think that ancient humans were crafting whale bone instruments in places including the Arctic and South Pacific. There’s been solid evidence of whale bone tools dating back to about 5,000 years ago, but the new research published Tuesday in the journal Nature Communications pushes the timeline back.Ancient humans weren’t necessarily hunting whales, said study author Jean-Marc Petillon with the French National Centre for Scientific Research. More likely, they were scavenging the bodies of beached whales and fashioning their dense, heavy bones into tools to hunt reindeer or bison.

The tools indicate that ancient people in the area took advantage of resources near the sea for survival. They likely also collected seashells and fished. Finding such evidence has been difficult as rising sea levels disrupt coastlines across the globe, scientists said.

“It’s one more contribution to the importance of coastal environments for human groups, even in this long past,” said Petillon.flag printed with the words “please walk on me” and laid on the floor of an art gallery has once again been packed away following public outcry, 30 years after protests forced the removal of the same artwork.

The Suter Art Gallery in the city of Nelson said Thursday it had taken down the work by Māori artist Diane Prince due to escalating tensions and safety fears. The episode mirrored an Auckland gallery’s removal of the work amid public backlash and complaints to law enforcement in 1995.This time, the flag was meant to remain on display for five months. Instead, it lasted just 19 days, reigniting long-running debates in New Zealand over artistic expression, national symbols and the country’s colonial history.

Police told The Associated Press on Friday that officers were investigating “several” complaints about the exhibition.The piece, titled Flagging the Future, is a cloth New Zealand flag displayed on the floor with the words “please walk on me” stenciled across it. The flag features the British Union Jack and red stars on a blue background.