Nature is seen as superior to Man since his inventions were first 'invented' by Nature.
The theme is in the title! E.g., a drinking straw is not an "original" idea because moths and butterflies used them, in the form of a proboscis, long before Man invented them. What good does it do children to blur the distinction between human conceptual achievement and the deterministic¹, unguided events of Evolution? After every example, the text practically shouts "Nature Did it First!" One can imagine the impact on children taught that true human invention is inferior!