A war mastiff named Dragon kept vigil over his fallen Templar master for three days amid the stench and chaos of Acre.

Bucephalus carried Alexander through rain, arrows, and elephants until the warhorse finally gave everything he had left.

A Korean War racehorse turned battlefield legend, Reckless made 51 trips under fire in a single day and became a Marine through sheer will and endurance.

The fearless French Malinois who led the charge in Saint-Denis and gave his life hunting terrorists in 2015.

Two sled dogs, Togo and Balto, pushed through the deadliest winter Alaska could throw at them to carry a town’s last hope for survival.

Hachikō became Tokyo’s quiet heartbeat of devotion, waiting nearly a decade at Shibuya Station for a master who never returned.

An ape who learned to talk back, Kanzi shattered the line between human and animal by mastering symbols, jokes, and even fire.