Like us, animals are exposed to parasites, bacteria and viruses β the germs which cause disease.
As children we learn more about life through playing games than we do in any other way. It is the ability to play that enables us to develop into well co-ordinated, adaptable, highly social individuals. But we are not alone, animals play also.
An Indonesian legend claims that monkeys can speak but they prefer to stay quiet.
Insect societies have always fascinated us by the perfection of their organisation. But without their ability to secrete a substance (wax, glue, ...) insects would never have been induced to become organized. The first groupings were enabled by constructive secretions such as silk, a magical fibre that builds, unites, and speaks.
The study of animal behavior leaves little room for emotional-related explanations. Feelings in animals tend to be presented as functional explanations of behavior in a given situation.