A very social animal, it forms hierarchical clans composed of 2 to 50 individuals. These clans are made up of 2 to 3 family groups. A family consists of a breeding pair and their young. Within a clan, males and females each have their own hierarchy with a dominant male and a dominant female respectively. Generally, it forms a pair, which has exclusive breeding rights. Their place in the hierarchy is determined by their age, with older individuals ranking higher. In other cases, a female may acquire a high rank by inheriting her mother’s social position, by winning violent competitions, or by joining a group of males leaving their natal group.
Living in arid environments, meerkats dig underground tunnels with several galleries and chambers. Sometimes, they use burrows abandoned by other species, but also force other animals out of their burrows to reclaim them. So, when it is too hot or too cold, they can take refuge in the burrow where the temperature remains stable and comfortable.
The network of tunnels created by meerkats features multiple levels connecting the different chambers. These can measure 30 cm high and 15 to 45 cm long.
They dig up to 5 dens in their territory, each separated by 50 to 100 m. This offers more possibilities to take cover in case of danger.
It owes its nickname of “sentinel” to its posture, which allows it to spot predators. In fact, group members take turns standing upright on their hind legs to watch the surroundings. As soon as the sentinel spots a predator, it emits a sound that will vary depending on whether the predator comes from the sky or the ground, and if it is close or far from the group. As a digger, the meerkat often has its muzzle pointed to the ground and is therefore vulnerable.
When resting, the meerkat uses several positions. One of them is to sit, arching its back and putting its head between its legs to preserve as much body heat as possible. When it is too hot, it stretches out on its belly in the shade to cool off. Conversely, to warm up, it lies on its back or side in the sun.