„The movie seems to be making a case for a sane ecological policy, which is all well and good, but it devotes most of its efforts to turning its subjects — driver ants, locusts, bees, moths, butterflies, Venus fly traps, and what not—into monsters of anthropomorphic dimension. […] A number of cameramen contributed the individual sequences, utilizing stop-motion photography, telescopic lenses and microscopic lenses, and their work is superb. The narration and the point of view, however, are sensationally awful and, possibly, misleading.“ – Rezension in der New York Times vom 29. Juni 1971, abgerufen am 14. Januar 2013.
