You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.

It's clear that humans and animals (especially those close to us in the evolutionary tree), share similar chemical responses in their brain when faced with highly emotional situations.  Whether it be fear, contentment, mating urges, we have a lot of analogous mechanisms going on.  On this basis alone, there is a pretty strong argument that animals have feelings.\nOne possible counter-argument, however, is based on the definition that for certain chemical responses to be called feelings, that the being in question needs to have a conscious awareness of their state.  With this defition, it becomes much harder to say whether animals experience feelings in the same conscious manner even though the neurochemical signatures are similar.\nMy opinion is that this definition based on conscious understanding is a little specious, as it's based on an ongoing desire by some to try to define humans out of the context of the natural world... and to claim that we are categorically better than the other animals.  \nIf the neurochemical basis for consciousness is ever discovered we'll be able to quickly check which animals have this, and I suspect we'll find that many are conscious.  If this is so, then their feelings will be as real as human ones in all senses.
1