Keller Breland's IQ Zoo--Zoo of Yesterday

1955

Keller sold an animal conditioning booklet, advertised in the back of a Mutual of Omaha comic book, which I purchased, I think in 63 or 64 for .25 plus shipping and handling. I used the same methods he wrote about in 1991 when I trained the pig show at the Toronto Zoo, including teaching the pig AC to carry soda cans/bottles to a recycling bin and dropping them.