Sentret is a small mammalianPokémon covered in brown fur. It has long, dark brown ears with dark pink interiors, beady black eyes, and a small mouth. While it is capable of standing on its hind legs, it typically moves on all fours. It has a round body with wide arms and two small feet. On its belly is a white ring and there are dark brown stripes around its tail.
Sentret has a cautious, timid nature and can often be seen standing on its tail to scout its surroundings. It will only sleep if there is another Sentret keeping watch and will be too frightened to sleep if separated from its pack. When it senses danger, it warns others by screeching and thumping its tail on the ground. Sentret can most commonly be found in temperate grasslands.
When Sentret sleeps, it does so while another stands guard. The sentry wakes the others at the first sign of danger. When this Pokémon becomes separated from its pack, it becomes incapable of sleep due to fear.
They take turns standing guard when it is time to sleep. The sentry awakens the others if it senses danger. If one becomes separated, it turns sleepless with fear.
When Sentret sleeps, it does so while another stands guard. The sentry wakes the others at the first sign of danger. When this Pokémon becomes separated from its pack, it becomes incapable of sleep due to fear.
Three Sentret appeared in Till We Compete Again!, with two of them under the ownership of two different Trainers and one of them being wild.
Five Sentret appeared in The Power of Us. Three were under the ownership of different Trainers, Ashcaught a fourth as part of the Pokémon Catch Race, and the fifth was wild.
Sentret, the Scout Pokémon. Sentret is able to see great distances by rising up on its tail. When it spots an enemy or any kind of danger, it emits a loud, shrill cry as a warning.
In Slugging It Out With Slugma, a Sentret was at Earl's Pokémon Academy in Violet City. Crystal uses it to illustrate the concept of held items, such as Berries, to one of the children. Later, in The Last Battle XIII, Sentret was one of the Pokémon sent to participate in the fight in Ilex Forest.