Sort:  

Very interesting @navrosekalsi ! I once heard something that a ladybird would not cross a line, but would run along it.

Yess exactly .. i tried it though 😁😁
I don't know the scientific reason why they do that ..

I can only guess. The fact is that all the dangers of insects are laid on the gene level. One of the main enemies of insects is sheep and goats. When they go grass, they eat everything and everyone! I saw the inhabitants of the deserts arrive. to protect at night from insects, such as poisonous spiders, scorpions and scorpions. They, around the place where they sleep, unwrap from the skein thread from sheep's wool. No insect will cross this thread. For them, this is the danger of the presence of sheep. It is possible that the line resembles the hair of a sheep, or a goat. This causes the ladybug to move along it, but not to cross it.