In the summer fog of 1958, a wild sea lion named Etta dove into a riptide twice to push two drowning children back toward safety.

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.

Wisdom, a 70-year-old albatross, has spent a lifetime outlasting wars, storms, and entire generations of scientists.

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