You try to be unobtrusive when you’re filming, and you can use concealed cameras, but sometimes they just have to go in and shoot for days, or weeks.
The first several days, the animals are noticing you’re there, and they’re weirded out and you get bizarre footage of animals staring at you. But if you’re in the same spot day after day and you never bother them, eventually they decide you’re not interesting and they get back to normal behavior, and now you can get footage that’s actually a decent representation of the animals.
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