New Delhi, Feb. 22 -- Last week I met a baby wallaroo. If you, like me, have above average wildlife trivia, it is possible you are thinking "the what now?". Perhaps you have truly great wildlife trivia and already knew that it is not a cross between a kangaroo and a wallaby and it's a completely different species of marsupial in that island kingdom. Well, good for you. I certainly didn't. It's left me thinking somewhat cheerfully about my ignorance. It's nice to not know things.

When I was in school, I used to write letters to my best friend during summer holidays. One year she complained gently about my covering the blue aerogram from end to end with random pop trivia that I had read. "I want to know about what's going on in your life,"...