 Many kinds of elephants are nearing extinction due to poaching for their ivory tusks and habitat loss from development. But what difference would it make if there was a way to communicate with these endangered animals? We'll explore new insights into elephant cognition in the U.S. National Science Foundation's discovery files. The blast of trumpeting elephants might be their most famous sound, but they also make lower-pitched, rumbling sounds that are used in a wide variety of social situations.