is a testament to human resilience and longevity. But 122 years is merely a starting point in the animal kingdom, where the world's longest-living animal has existed for hundreds of years.

Here's a glimpse at some of the longest-living life-forms on Earth: The average human lives for 71 years, but the oldest on official record — Jeanne Louise Calment — survived to see her 122nd ...

Here are ten of the longest-living animals on Earth ... Factors in their environment, such as predation, human activities, and disease, can significantly shorten their lifespan in the wild.