内容摘要：The Indian census is said to be the largest peacetime mobilization in the world.

The Indian census is said to be the largest peacetime mobilization in the world.

RIO DE JANEIRO (AP) — Niède Guidon, the Brazilian archaeologist known for discovering hundreds of prehistoric cave paintings in northeasternand for her research challenging theories of ancient human presence in the Americas, died Wednesday at 92, the Serra da Capivara National Park announced.

Guidon first documented the red ocher cave paintings in the semi-arid state of Piaui in the 1970s. These ancient artworks, made with natural pigments such as iron oxides and charcoal, depict deer and, but also scenes of everyday life including hunting, childbirth, dancing and kissing.Guidon fought for the preservation of the area, leading to the establishment of the Serra da Capivara National Park in 1979. In 1991,

recognized the nearly 130,000-hectare park, with its sprawling valleys, mountains, and plains, as a world cultural heritage site.Guidon’s discoveries shook traditional theories on when and how humans arrived on the American continent, according to a 2024 statement by Brazil’s National Council for Scientific and Technological Development.

It was previously believed that humans had reached the Americas approximately 13,000 years ago via the Bering Strait between Siberia and Alaska.

Based on the exploration of archaeological sites in Piaui — which uncovered 15,000-year-old human bones, cave paintings estimated to be around 35,000 years old and evidence of fires dating back 48,000 years — Guidon argued that humans had arrived on the American continent from Africa via the sea, and much earlier than previously believed, the statement said.“Quite a few animals communicate primarily through song, and their songs are how they find each other,” Munroe said. Those with soft and quiet songs, like warblers, small species of owls, bats and some species of crickets, for instance, can be so badly drowned out by noise pollution that “they literally cannot build families or reproduce,” he said.

To illustrate the point, Munroe likens the animals’ songs to navigation systems.“Imagine these songs are the birds’ roadmaps to each other, and imagine you’re using your GPS to get somewhere and all of a sudden it turns off, and that’s the only way you can find your family. Now, with it turned off, there’s no way you’ll find your family. That’s what song is like for these animals,” he said.

Artificial noises from power equipment, traffic, construction and industrial sources, can also cause stress and hearing loss in animals. Aeven found that highway noises can elevate heart rates in