I liked the one with the roadrunner on the desert. A woman at the beginning says, "Roadrunner." Then a roadrunner runs quickly with fast paced music accompanying it. After the bird stops, the woman repeats, "Roadrunner" and the bird takes off again. I had mixed emotions about this film as a small child when I frist saw it. Having seen the Looney Tunes cartoon with the coyote and roadrunner, when I first saw this SS film I was pretty excited to learn that there really is a bird called a roadrunner. But at the same time I was a little dejected that the real bird, while fast (about 15-20 miles per hour) doesn't run nearly as fast as the cartoon bird! Of course, they are called roadrunners because of their frequent running on the ground to catch prey (instead of flying) in addition to their fast speed. By the way, remember "The Electric Company" made some roadrunner and coyote cartoons? Maybe it was SS, but I strongly think it was TEC. (If someone on "Who Wants to be a Millionaire?" called me for their phone a friend lifeline and asked me, "Which of these PBS shows had their own coyote and roadrunner cartoons? I would say "The Electric Company". And when they asked, "Okay, how sure are you?" I would say, "About 90%").
And let me quickly mention another SS animal film. It was pretty brief. It showed a gazelle or antelope running and a girl says, "Fast." Then it shows the animal running faster and the girl says, "Faster." And then it runs really really fast (wonder if they simply just sped up the film?) and the girl says, "Fastest." I liked the increasing intensity of the music that accompanied the speeds of the animal.