In Amboseli a calf is separated from its mother and is frightened. It emits a rumble-roar-rumble on the run (not in this clip) and then trumpets as it searches for its mother.
In Amboseli a series of alarmed-trumpets by frightened Ejac, aged two, as he runs to the safety of his mother, Enid, after having been separated for some time. Enid rumbles (not in the clip) and almost immediately 4 year old Ejac, who is separated from her, begins to trumpet in alarm. He trumpets four times as he runs to the safety of his mother. The alarmed-trumpets become louder as the calf approaches the microphone - you can hear his footfalls. His mother rumbles to him as he comes running toward her.