Chimp Raised With Human Child: WN Kellogg’s Hubris

1930s scientist WN Kellogg brought home Gua, a 7-month-old female chimpanzee, to raise alongside his 10-month-old son, Donald.

Here’s an interesting and very charming 10-minute lecture explaining what happened. Includes really cute video clips of the child and chimp, showing their developmental similarities and differences.
Despite a sad ending, this presentation is really great.
Via Metafilter.