Anthropomorphising animals is almost completely impossible not to do. The problem is that it's such a pleasant feeling to think that we have something in common with other living beings, you want to see their behaviour as similar to that of a human. Perhaps it's part of the brain's powerful, yet over-sensitive, pattern-detection algorithms.
Amazingly, people prefer to see these "human" behaviours (which are more likely due to coincidence than not) than the actual attributes humans have in common with animals; pretty much everything. We are so used to living socially, where small differences seem very important, that we don't notice that the similarity between all living beings in much greater than the difference between a living being and a rock, or a grain of salt.
What a shame.
[edited for typo and stupidity]