I think I listened to a presentation of Steve's at the San Deigo zoo once. I was just back from the Gulf of Tonkin and the young ladies of the day didn't seem to care for for returning Vets much

. A few of us went to the zoo to be around critters that didn't scowl at us.
There was a guy and his wife there with a lion on a chain speaking at great lenth of the habits and facts of the big cats. Didn't catch his name at the time but reconized him and his wife from his book when I got it.
He dang sure knew his cats.