Competition

Aggressive behavior often occurs when individuals compete for the same resources. Animals may compete for territory, water, food, or mates. There are two basic types of competition: intraspecific and interspecific.

• Intraspecific competition occurs between members of the same species. For example, two male deer may compete for mates by clashing their antlers together.
• Interspecific competition occurs between members of different species. For example, one species of ant may attack and take over the colony of another ant species.