Never let it be said that all movies produced in the 70s are vaguely symbolic, better-left-shelved-unless-you're-artsy, what-were-they-thinking, I-can't-wait-until-this-is-over relics of bygone days. We have found the exception.
Animals Are Beautiful People is a 1974 documentary by Jaime Uys (The Gods Must Be Crazy) about the wildlife in southern Africa. To read more about its making and contents, go here.
As for its compatibility with babies, we didn't really take issue with anything. It is a little bit evo, but lacks agenda-driven rhetoric and imagery so we didn't have to get out the brainwasher. Rather, we each of us enjoyed it a good deal, and learned a bit about unfamiliar species in the watching. The writing is clever, the narration pleasant, the editing superb, the characters amusing, and the music classical. Who could want anything more from a documentary?
For the die-hard Victorian, I warn that there is a scene wherein the animals indulge themselves on fermented fruit and get a bit wobbly. And some tribeswomen are shown NURSING THEIR BABIES. Duck and cover. ;)
Thanks much to rebekah for the recommendation.