Yeah I know but that wasn't specified in the story if I remember it right. I'm pretty sure there are no tigers in Africa though.
We read the story in the same way that we would have read it if Sambo had been a kid born to farmer parents in Iowa. In other words the issue of race or ethnicity never came up. It was a story about a kid dealing with a problem.
I think children need to be exposed to much more such stories matter of factly and without social indoctrination being included. Then and then only will people begin to FEEL that we're all in this together and race in the context of racism will be erased from the national psyche. So long as we continue to call attention to it, make a big deal about it, dictate to others how they should think about it and deal with it, and separate people into groups in our minds, racism will remain alive and well.