Eeyup. Just as the title says, this is about nature documentaries. Documentaries of animals (also extinct ones, if you can find any.) we all utterly adore with their morbidness and/or cuteness. It can be whatever documentary you can find, no matter how obscure. Just remember that the usual case is that the more strange the animal, the better the documentary! A good example is National Geographic's Really Wild Animals which I'm sure most of you have seen before. Also, another one on Amblypygi. Now, post documentaries. POST THEM NOW.

Microcosmos.

An interesting tidbit: at least half of our leechy population owned this in VHS form at some point.

Life was an excellent show, if you haven't seen it I very much recommend watching.

Another good one that had slipped my mind but this topic reminded me of, Lost Land of the Volcano. A group of biologists went to an (almost, there were some natives) unexplored part of Papua New Guinea and discovered a bunch of new species.

I know I did. I can recite the intro word for word.

Life in the Undergrowth

Bugs that roar for whatever reason!
This show is fairly new, and I find it enjoyable. It makes a battle of insects look like a battle of epic proportions.

Not that it already was.

A cool insect documentary that I used to watch all the time on vhs as a kid was Alien Empire, a BBC production narrated by John Shrapnel. It has lots of great footage and overall stresses the idea that earth is the planet of the insects, not humans.

BBC's Planet Earth. Absolutely amazing series.
To a lesser extent, BBC's Secret Life of the Plants, BBC's The Blue Planet, and BBC's Life.

Anything by David Attenborogh is fun stuff in my opinion!

I would definitely also recommend microcosmos, even if it is a bit outdated and lacking narration.