“The thing about zebras,” my safari guide said, “is that they always look a little fat. But that’s just gas. Zebras are full of gas.”

I am on a 10-day safari trip in Botswana, and so far I have learned that enough baboons can take down a leopard and that zebras are flatulent. I have also learned that rhinos are so stupid that they sometimes get their heads stuck between tree branches, warthogs gingerly back into their hidey-holes to enable a quick exit, and hyenas just wait around for the more glamorous predators to kill something, feast, and then leave the carcass to the scavengers.