I once had a beagle that was a voracious insect killer. She would play with spiders, cockroaches, ants, etc. the same way people talk about cats playing with mice. Eventually, she would always make a mistake of pressing too hard when trapping the insect and pulling it back, and we’d have another little squish spot by the back door that needed to be cleaned.
The ‘not significant’ part could be due to low numbers in general, so they can’t get the variances small enough to get low p numbers. It’s a quote that I can’t quite remember perfectly that is well known in sociology/psychology: “The only reason our findings aren’t significant is because we’re too damn lazy to drag enough people in for the study.”