Why are there so many ants when the weather changes?

Many people think that ants move before it rains because they are afraid of it. In fact, ants move before it rains because it is mostly cloudy before it rains. Ants like to move on cloudy days or at night. Ants choose to move on cloudy days or at night in order to prevent sunlight from hurting their eggs. In addition, it is possible that the increase in the number of ant colonies leads to food shortage near the ant nest, and it is necessary to find new food sources. After thorough investigation and preparation by the workers, they finally found an area with more abundant food, so the ants began to move their families by sending out a certain smell message. In addition, ants moving may be an escape action. Like many other animals, ants are animals that need to seize and protect their territory. When other ant colonies appear near the nest, two ant colonies may have a fierce conflict in order to compete for living space. As a result, the loser lost his original home and took refuge in the "distant place." The fourth possibility is that some kinds of ants have the habit of building multiple nests. When their population is large, they instinctively start to build new nests in order to divert some ants.