Hybrid vigor, or heterosis, refers to the phenomenon where crossbred individuals exhibit enhanced biological qualities compared to their parents. This concept is particularly evident in plant and animal breeding, as hybrid offspring often show greater growth rates, increased fertility, and improved resistance to diseases compared to their purebred counterparts. Hybrid vigor arises from the combination of diverse genetic backgrounds, allowing for a greater range of traits and adaptability. This principle is widely used in agriculture to produce high-yield and resilient crops and livestock, contributing to food security and sustainable farming practices.