There's been a couple of questions lately about different creatures/rocks/trees that are living at a different time-rate than humans, and it got me thinking about a story that I'd read when I was in 6th grade and hoping to find again.
I read the story in English, in the US, in 1980. Here's where it gets tricky... the story was actually on a card, maybe 6" x 8", with a small illustration on each side. It was in a teacher's box with many other cards (different stories) in a classroom. We were assigned to read a story/card once a week or so and there might have been questions about the story on the card itself, or we might have just had to note that we read it. I don't think that all the rest of the stories were necessarily Sci-Fi, just short stories to get the attention of a 6th grader. I do not remember any of the other stories.
The story itself was short, as I said, maybe 2 pages (card sides) long, and illustrated with 1 or 2 drawings of 2 large (maybe 30-50') statues that vaguely resembled Easter Island statues but had arms and legs. One statue was sitting/laying on the ground, and the other was standing nearby. There had been pictures of the statues taken quite a few years previously, and a person was in a small plane taking more pictures now. Comparing the pictures it was noticed that the statues were slightly moved (the standing one's hand had moved closer to what appeared to be a gun on it's hip), and it was determined that they weren't statues but rather creatures who lived at a much slower time rate than humans, and that the standing one was coming to the defense of the fallen one.
Does this sound familiar to anybody?