This is quite interesting, if you like this sort of thing. Wild mountain gorillas have been seen using tools for the first time in the wild, and not just for finding food either.
Here‘s a great series of photos showing a female gorilla wading across a river, getting waist-deep, then going back to the edge to find a stick to check out the depth in front of her as she crosses.
I think this is great because it shows once again that it’s not only human who have the ability for abstract thought. In particular this is significant because the use of the stick wasn’t to getting food but simply to make her life easier and safer. This is precisely the kind of thing that early humans must have done. It’s very easy to imagine an ancestor or ours poking their way across a river, deciding that they have a good stick, holding on to it, and beginning to find other uses for it. What these photos show is a scene that has probably happened millions of times before, but we’ve never witnessed its like in other creatures. Fantastic.