The arrival of man has brought many challenges to certain natural laws of the world  For example, the fruit of a plant is delicious because it needs to attract animals to bring the seeds that are provided by its fruit to further places, it also rewards the animals that spread the seeds with nutrient-rich fruit  It's a perfect square deal
But the seeds in the fruit are either disposed of in a concentrated way or planted in orchards by human
Man sometimes destroys the perfect square deal of nature.