Forage harvesters are specialized agricultural machines designed to cut, chop, and collect forage crops, such as corn or grass, for animal feed. They operate by using sharp blades to cut the plants and then a series of mechanisms to chop them into smaller pieces, making it easier to store and digest for livestock. These machines can be self-propelled or towed by tractors and are often equipped with various attachments to handle different types of crops. Forage harvesters play a crucial role in modern farming, helping to efficiently gather and process large quantities of feed, which supports the livestock industry.