I'm not entirely sure why holistic treatments would be controversial in
animals. Perhaps what makes them controversial is the fact that we tend
to assume we know what makes them holistic and how they will be holistic
for the animal - this isn't necessarily the case, as we can only make a
good guess about it.
Human beings are naturally lazy and procrastinators, this means that they are more likely to judge others for not doing what they believe is the best but are often incapable of judging their own misbehaviour and to attempt to improve their own flaws and lack of self control—as most have.
there are two plausible explanations for this problem:
1) they’re waiting for someone else to clean the park.
2) the complaining has become an integrated part of their lives and they honestly probably don’t care enough; if they did, they would’ve cleaned it by now.
The answer is “Organisms that contain functional recombinant DNA
I'm no sure but I think this a factor of evaluation, so an evolutionary explanation?