The Thomson's Gazelle (Eudorcas thomsonii), sometimes referred to as the "tommie", is a species of gazelle native to Eastern and Southern Africa. They are one of the best-known species of gazelle in the world, named after Joseph Thomson. 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. Thomson's gazelles can be found in numbers exceeding 550,000 in Africa and are recognized as the most common type of gazelle in East Africa. The Thomson's gazelle can reach speeds of 50–55 miles per hour (80–90 km/h). It is the 5th-fastest land animal, after the cheetah (its main predator), pronghorn, springbok, and wildebeest.
They are very fleet-footed and can run up to 55 m.p.h, and while usually is enough to escape most predators, very few like cheetahs, and African wild dogs can catch them. The males have impressive battles and the display alone is spectacular. But these displays make the males vulnerable to attack from predators like lions, leopards, spotted hyenas, crocodiles and pythons.