Here's why there's such a difference:
* Survival Challenges: Black bears face many threats in the wild, including habitat loss, human conflict, and hunting.
* Disease and Injury: They can also succumb to diseases, injuries, and parasites.
* Food Availability: Food availability plays a big role in their lifespan. Bears that have access to ample food sources tend to live longer.
It's important to note that these are just general guidelines. Individual bears may live longer or shorter depending on their specific circumstances.