What are the small animals that predict rain?

Dragonflies, because the air is humid before the rain, the moisture increases, and the thin wings of dragonflies are affected by the moisture in the air, so they can't fly high; At this time, small flying insects will also fly at low altitude, and dragonflies will mainly feed.

When ants move, when it is about to rain, the air will become sultry. Ants are naturally sensitive to changes in the air. But when they found the air stuffy, they knew it was going to rain, and then they moved their home from low to high.

Swallow, before it rains, the humidity in the air is high, which makes the wings of insects wet. Therefore, the flying ability of those insects as swallowing food is greatly affected and they can only fly near the ground. So swallows also lower their flying height and look for their own food-insects near the ground.