This poll is wrong. Some animals have emotions, some don't. It depends on the animal you are talking about. It's not like a crayfish or crocodile has any feelings/emotions while a parrot or dog does.
The adult alligator has a brain roughly the size of a marble. This is a creature that can be up to 12 feet long, sometimes bigger. They operate on instinct alone, period. Most Reptiles and amphibians are roughly the same. They just don't scientifically have the brain power to support an emotional response system and it is not needed.