Herd animals are species that live and travel in groups, known as herds. This behavior provides safety in numbers, as being part of a group can help protect individuals from predators. Common examples of herd animals include deer, elephants, and bison. These animals often exhibit social structures within their herds, with dominant individuals leading and guiding the group. Herding behavior can also facilitate foraging for food and caring for young, as members can work together to find resources and protect their offspring from threats.