Searching for Video on Tapeworms

[zetsubou_freak]

I'm wondering if anyone would know of an older biology tape that mainly concerns itself with tapeworms and other parasites of the sort. My biology teacher said she use to have a tape like that, but I don't believe she remembers the title. I've been searching for such a tape, but I have no luck at all.

Does anyone know of a title of such a videotape? It's supposed to be an older tape, so I doubt it's still be published.

Please reply if you've heard of such a tape.