Crickets are omnivores and will eat fruit, seeds, leaves, other insects, nectar and parts of dead animals. While they are agricultural pests that will eat crops and seeds, this occurs rarely. Overall, crickets are not bothersome to humans.
Crickets are medium-sized insects that are similar to grasshoppers. While most are brown, crickets can also be green or black. Most male crickets can chirp by rubbing their front wings together; they use this to communicate. Crickets are nocturnal and their chirping is more often heard at night. They are most often found in humid areas, in soil or where plants are found. They can live for a year or more, but typically cannot handle cold winters. In some countries, crickets are kept as pets.