Individuals interact by:

1. Compete

1.1. Fight

1.1.1. Water

1.1.2. Food

1.1.2.1. Eat each other

1.1.3. Mates

1.1.3.1. "Wife" or "Husband"

1.1.4. Friends

1.1.5. Space

2. Cooperate

2.1. Working together

2.1.1. Play

2.1.2. Eating together

2.1.3. Mating

2.1.4. Hunt together

2.1.5. Communicating

2.1.5.1. Barking

2.1.5.2. Smell

2.1.5.3. Body language

2.1.5.4. Touch