[11] In a more recent revision of the phylogeny of the Antilopini on the basis of nuclear and mitochondrial data in 2013, Eva Verena Bärmann (of the University of Cambridge) and colleagues constructed a cladogram that clearly depicted the close relationship between Nanger and Eudorcas.

Both sexes possess horns that curve slightly backward with the tips facing forward.

[6] Thomson's gazelle lives in East Africa's savannas and grassland habitats, particularly the Serengeti region of Kenya and Tanzania.

[18] In the Serengeti, they follow the larger herbivores, such as plains zebras and blue wildebeests as they mow down the taller grasses.

Their major predators are cheetahs, which are able to attain higher speeds, but gazelles can outlast them in long chases and are able to make turns more quickly.

[19] This small antelope can run extremely fast, up to 80 km/h (50 mph),[20] and zigzag, an adaptation which often saves it from predators.

A noticeable behaviour of Thomson's gazelles is their bounding leap, known as stotting or pronking, used to startle predators and display strength.

During the wet season, a time when grass is abundant, adult male gazelles graze extensively.

[21] Younger males usually spend their time in bachelor groups, and are prevented from entering the territories.

[23] A male gazelle follows a female and sniffs her urine to find out if she is in estrus, a process known as the Flehmen response.

[23] Females leave the herd to give birth to single fawns after a five- to six-month gestation period.

[25] Birthing predominantly occurs after the rainy season, with newborn fawns weighing 2 to 3 kg (4.4 to 6.6 lb).

[18] When giving birth, a female gazelle crouches as the newborn fawn drops to the ground, tearing the umbilical cord.

[27] In addition, licking possibly also serves to stimulate the fawn's blood circulation, or to "label" it so its mother can recognize it by scent.

They move slowly in the direction of the fawn's hiding spot, stopping frequently to scan the environment.

In one instance, a female appeared to actively search for predators by climbing to the top of a slight hill to scan prior to approaching her fawn's hiding spot.

[27] In an experiment studying the effects of dehydration and heat stress on food intake and dry matter digestibility, Thomson's gazelle exhibited metabolic adaptations for desert environments.

When exposed to heat stress alone, neither the food intake nor digestion of Thomson's gazelle was affected.

[1] Surveys have reported steep declines (60-70%) over periods of about 20 years dating from the late 1970s in several places, including the main strongholds for the species: Serengeti, Masai Mara, and Ngorongoro.

[1] References to the Thomson's gazelle were an occasional running gag in Monty Python's Flying Circus.

The 2016 Disney film Zootopia features an anthropomorphic Thomson's gazelle pop star, voiced by Shakira.