England’s answer to the howler monkey

Back in the fall of 1995, I visited Costa Rica with a friend of mine, and one of the first things we did was take a hike through the rain forest in a beautiful national park encompassing a small range of active volcanoes. While crossing a stream in the forest we heard a low-pitched sound so loud and disturbing my first thought was that it must have been a rhinoceros in the throes of death or, possibly, the throes of passion.

Obviously, I know there are no wild rhinos in Costa Rica or anywhere else in the Western Hemisphere, but the sound was so bizarre and terrifying I could think of no other animal capable of producing it. Read More »