There are some different things I've wondered about lately.

- Do animals have desires and/or emotions? Do all animals have these attributes, do some of them, or do none?
- What makes humans different from other animals, and what makes animals different from plants, fungi, bacteria, etc? Now, not as much simple biology as their difference when it comes to instinct and intelligence.
- Why does instinct and intelligence play such a big role when a person decides which animal is more "worthy" than others? And for that matter, what is instinct and intelligence (I'm not trying to sound thoughtful here, though)? I probably come with really stupid questions right now, but I'm not into biology, or whatever area of profession knowledge of instinct and intelligence go under.

I believe that animals have desires. First, observing how animals act, would make me conclude that they have desires. Or rather, most animals. Due to their independent nature (i e, they have to do things in order to survive, as opposed to plants, where everything gets done for them), they need desires (either deriving from instinct or intelligence, or what you'd call it) in order to surive. If there is no water in the area, a plant located in that area would die. An animal, however, would search for water somewhere else. But, in order to go searching for this water, it needs to have some kind of driving force - perhaps, wanting to drink.