One of the highest achievement of survival strategy

Aphids, which grow in large numbers on the stems of plants, look disgusting and many people may not like them. Since they parasitize plants and suck their sap, they are pests for those involved in agriculture and gardening, and they are so familiar and troublesome that extermination is the first keyword associated with aphids.

They have very low ability to protect themselves and rarely move, so they are easily eaten by their natural enemies such as ladybugs, but they are trying to preserve the species through their explosive reproductive ability and the strategy of coexisting with ants.
Coexistence with ants is a well-known story. The plant sap that aphids suck contains sugar, and aphid excrement contains excess sugar, so in exchange for sharing the sugar with ants, they chase away ladybugs. Aphids are sometimes called by the Japanese word "Ari-maki", which means ant farm, because ants are attracted to areas where aphids are present.

Aphids give birth to winged individuals or males when necessary, and migrate and reproduce sexually, but almost other times they reproduce at a rapid rate through parthenogenesis. The survival strategy of producing the necessary individuals when needed and focusing on increasing the number at other times is one of the ultimate survival strategies of living things, I think.