Thomson’s Gazelle The Thomson’s Gazelle is the smallest, daintiest and fastest of all gazelles. Sometimes referred to as ‘Tommy’, this gazelle was named after the Scottish explorer, Joseph Thomson who explored Africa in 1890. These graceful antelopes are still one of the most common gazelles in East Africa and although numbers may have declined in other parts of Africa, the Thomson’s Gazelle still thrives on farmland, grasslands and savannas in the East.