When I was seven years old I found this book that stated that vegetation "appeared to be growing on Mars" and that there were probably animals there, too. There was a nice painting of some astronauts visiting said Martians. This book contained a wealth of space-age propaganda about how we'd all be taking holidays on the Moon in the near future - you know the deal.
Later I found out that this book was published decades ago and that people had since decided that Mars doesn't have forests (or happy little forest-critters) after all.
With my romantic view of space irreparably dashed to pieces, I have since been trying to fill the emptiness with an appreciation for beauty that only science can offer... (:
ANYWAY, that was one great little book. If anybody out there knows its title or where I might be able to find a copy of it, or if anyone has any other info about it, please post your replies!