Ants are mobs that appear in OreSpawn mod in the Overworld.
The top left of the picture is Unstable Ant, which lead the player to Danger Dimension when right-clicked.
The top right is Brown Ant, which lead to the Utopia Dimension when right-clicked.
The bottom left is Rainbow ant, which lead to the Village Dimension when right-clicked.
The bottom right is Red Ant, which lead to the Mining Dimension when right-clicked.
All Ants has 1 health and 0 attack but red ant has 2 health and 1 attack.
All pets follow the player when the player was teleport to another dimension, unless the player call them to sit.