Complex sentence: Sowerby's beaked whale ("Mesoplodon bidens"), also known as the North Atlantic or North Sea beaked whale, was the first mesoplodont whale to be described.
Split into simpler sentences: Sowerby's beaked whale ("Mesoplodon bidens"), also known as the North Atlantic or North Sea beaked whale, is a species of toothed whale. It was the first mesoplodont whale to be described.