The Thomson's gazelle (Eudorcas thomsonii) is one of the best-known gazelles. It is named after explorer Joseph Thomson and is sometimes referred to as a "tommie".[1] It is considered by some to be a subspecies of the red-fronted gazelle and was formerly considered a member of the genus Gazella within the subgenus Eudorcas, before Eudorcas was elevated to genus status.[2] Thomson's gazelles can be found in numbers exceeding 550,000[3] in Africa and are recognized as the most common type of gazelle in East Africa.[1]