We are all familiar with stories of it raining fish, frogs, blood, rocks, etc.  The Ripley's and Fortean books are full of such stories.  I actually experienced one of these when I was a kid.
    When I was about ten years old, I was out playing in our back yard in Spencer, Mass. with my bother and a friend.  It was a sunny day without a cloud in the sky.  Very suddenly, the sky got cloudy and it started to rain.  My mother and other women in the neighborhood were trying to get laundry off the clothes lines as quickly as possible.  They had not been worried about putting them on the line because the weather report did not call for rain.  We all went inside to get out of the rain.
    About thirty minutes later, the rain stopped and the sky cleared as suddenly as it got cloudy.  We went back out to resume playing.  We had a surprise waiting for us.  There were hundreds of tiny frogs all over our back yard.  None of us actually say frogs falling from the sky, but where did they come from?  The frogs were not the kind we were used to seeing and ten-year-old boys see a lot of frogs, or at least did back then.  They were very small, only about an inch long, and a much lighter shade of green than the frogs we were familiar with.  
    When we told our parents they said the "baby frogs" must have come from a stream that was about one hundred yards away.  The problem with that explanation is that the frogs seemed to be clustered in an area of our back yard and the neighbors, about a fifty foot diameter area.  There were none close to the stream or in it.   And I had not seen frogs of that type there before.  Also, there are no "baby frogs" since frogs have complete metamorphosis going from egg, to polliwog, to adult frog.
    Within another thirty or forty minutes, all the little frogs had hopped off (none of us thought to catch one and keep it).  We lived in that house for several more years after that and I never saw frogs of that type again, either on land or in the water.
    So where did the frogs come from?  I don't know the answer.  I don't believe, as some do, that aliens scoop them into flying saucers to study and when they are done, just flush them out anywhere they happen to be.  I'm also not crazy about Fort's idea that they live and grow in the clouds — how did they get there in the first place?
    Another possibility is that water spouts suck fish, frogs, etc into the clouds and they are then dropped possible hundreds of miles from where they originated.  That one makes the most sense, but has one major weakness in my opinion: why only one species?  In all of the stories I've read of these strange rains, it's always one type of fish, frog, etc. that falls from the sky (or is found on the ground after a rain, so apparently fell from the sky).
    So what other explanation is there?  The only thing I can think of is that maybe it is connected with the Quantum concept of things being created by the observer, in this case, perhaps a crazy observer.

Some years ago, I sent this true story to Fate magazine and they published it.  A few people sent them letters (this was before email really caught on) about it and they forwarded them to me.  I had a chuckle about the one from a women who chastised me for saying there were no baby frogs with the explanation that "even Jesus had to start as a baby".  Apparently, she never heard of metamorphosis.