Okay, let's discuss just two details: - They discuss an effect size related to gender based on the observation of n=7 chimpanzees. Unfortunately, the software

Okay, let's discuss just two details: - They discuss an effect size related to gender based on the observation of n=7 chimpanzees. Unfortunately, the software didn't stop them from calculate t-tests etc. but this is simply ridiculous. At this point, we simply ignore the fact that the chimpanzees "participate in experiments on a voluntary basis". Self-selection bias is unheard of. - Other statements are based on the observation of n=1 chimpanzee. Again, unfortunately the software didn't stop them from calculating an anova. At best, this is a case study. Don't get me wrong, case studies can be very useful and informative. I'm a big fan of good case studies. But you shouldn't disguise it as something else. If you don't have data suitable for statistical analysis, forget about it. Do something else. Don't pretend you're a physicist. BTW I don't question that animals respond to music. Why not. But just repeating piano samples doesn't make sound music -- not even techno. Don't ask animals to dance to sound no human would dance to.