How "natural" sounds are faked for nature documentaries

Foley artist Richard Hinton is a master at making the goopy, slurpy, shimmery, grumbly, and slithery sounds you hear in nature documentaries. His work can be heard in series like "Planet Earth II," "Our Planet," and Disney's "Bears." From Insider:

While a spider is normally too small for a human to hear, the TV series "The Hunt" contained close-up shots of spiders.

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