You guys do realize that these scenes are not all from literally the same moment, right?
They have thousands of hours of film. They catch snippets here and there of various different moments, and then piece them all together to form the narrative.
For the mouse scene, they probably caught one shot of a mouse and an owl together. Then they caught another close-up shot of a mouse hitting the grass. They're not actually the same mouse. But they fit together through editing to give you a complete picture of the kinds of things that happen in the wild. Sometimes, iirc, a small portion of the footage they get isn't actually filmed in the wilderness at all. Like they'll see an event happen in the wild (like the mouse falling) but they don't get a very good shot of it. And since it's so ridiculously complicated and basically impossible to be in the exact right spot to get it a second time, they'll just re-create the moment for the cameras. Like they'll take a mouse that's been caught, set up cameras, and then drop it in a field of the same grass in order to piece it together in editing.
It is contrived to make it seem like it was all one event for storytelling reasons. But they never try to claim "this exact event occurred in this exact way on this exact date at this exact time in this exact location exactly as it's shown." That's not the point. The point of it is to show you an example of the kinds of events that animals go through in the wild. Everything they show in the the documentary is behavior that has been observed in the wild, but sometimes they have to set it up to get it on film.
