Both deaths could have been prevented from proper food storage. Flickr Photo.

Yellowstone park rangers are having an exhausting summer. From children being charged by bison to a clueless tourist strolling across the delicate Grand Prismatic spring, they’ve had a lot of dumb sh*t to deal with. But the latest news to come from America's first national park isn't stupid—it's just sad: two black bears have been euthanized.

RELATED: Eight Ways to Die in Yellowstone: An Annotated Guide

According to a park press release, bear-related incidents are becoming extreme. The increased carelessness of visitors, who leave their food unattended, are creating more problematic bears that have to be killed. Bears can't be relocated in Yellowstone, so when they become a problem they have to be euthanized. Here's why:

1. There are no areas in the park to move the bear where it wouldn’t have the continued opportunity to potentially injure someone and damage property.

2. Surrounding states do not want food-conditioned bears relocated into their jurisdictions.

3. Adult bears have large home ranges, good memories, and could easily return to the original area.

As a result, these bears are the victims of human negligence and this scenario played out last month at a backcountry campsite near Little Cottonwood Creek. A woman was nestled in her sleeping bag when a black bear bit her through the tent. Thankfully, her tent and sleeping bag protected her from the bite, and she was only bruised from the encounter. The bear, however, didn’t get so lucky. Rangers suspected it was a problem bear from last year and set up a decoy tent to confirm their hypothesis. Without delay, the bear returned to the scene and aggressively destroyed the tent, leaving rangers with no choice but to euthanize it.

Similarly, this month another black bear was caught consuming 10 pounds of unattended human food near a backcountry campsite along the Lamar River Trail. The following night, the animal returned to the same campsite and began to pester its new tenants. When hazing failed to scare it away, rangers had to put it down. Another bear, who’s been damaging tents and vehicles near Indian Creek Campground, is likely to be handled by rangers as well.

This problem isn't exclusive to Yellowstone, human interactions with bears are a common problem throughout the U.S. Remeber the curious cub from Northstar last winter?

The saddest part about these bear deaths is that they could have been easily prevented. Simple mindfulness like proper food storage goes a long way to ensure that everyone—even the wildlife themselves—can enjoy these incredible wild places.