Cockatoos and humans are locked in what Australian researchers have described as “an interspecies innovation arms race”. Sydney residents are resorting to increasingly sophisticated measures to prevent sulphur-crested cockatoos from opening and raiding household wheelie bins, detailed in new research published in the journal Current Biology. The study, led by Dr Barbara Klump of the Max Planck Institute of Animal Behavior in Germany, documented 52 combinations of techniques used by humans to det