Does the word "charity" imply, that the funds are used for caring for humans?

If so, is there something similar, but instead of being for humans, being about nature preservation?

I know, that there are many organizations trying to save parts of nature and endangered species etc. But it would be great to have a movement like this caring about nature, not humans. Humans only as a by-product of saving nature. Personally I have become skeptical of saving humans in numbers anywhere and donate more to nature saving organizations.