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Interesting collection of sounds:

National Geographic: You can now hear rainforest sounds worldwide—here’s 
why that matters 
<https://www.nationalgeographic.com/animals/article/researchers-share-more-than-a-million-hours-of-rainforest-recordings>. 
“Gorillas beating their chests, chimpanzees pant-hooting, elephants 
rumbling—and poachers firing assault rifles—these are some of the more 
than a million hours of sounds recorded by a grid of 50 microphones in 
the Congolese rainforest since 2017. The massive acoustic monitoring 
effort covers about 480 square miles in the Republic of Congo’s 
Nouabalé-Ndoki National Park—an area about the size of Los Angeles. It’s 
part of Cornell University’s Elephant Listening Project, established in 
1999 to detect communication among forest elephants and pinpoint 
poaching activity.”
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