Lock your doors: Yellowstone bears figure out how to open cars (VIDEO)

A video recorded in Yellowstone National Park shows the shocking moment humans have feared for years when a bear effortlessly opens the door of a car. Next time you go to bed and think you’re OK leaving the door unlocked, bear that in mind.

A family stopped to take pictures of the black bear on a drive through the park which occupies parts of Wyoming, Montana, and Idaho.

The curious creature, determined to make sure the photographer gets its good side, proves he's "smarter than the average bear."

Luckily the photographer does not flinch and quickly closes the door.

But the threshold has been crossed - animals now know how to get into our safety zones.

The screams of those in the back of the car mark the horror mankind now knows.

Bears have been captured on video trying to get into cars for years.

Then again, humans have been invading the bear's home for centuries with recent development and record-breaking numbers putting pressure on the park's resources.

READ MORE: Yellowstone National Park in danger of being ‘loved to death’

Perhaps the bear just wanted a ride to somewhere less populated.

While opening car doors might be freaking out visitors, bears - and other four-legged park residents - have to put up with humans doing annoying things.

The US Fish and Wildlife Service wants to delist grizzly bears because of their “robust” population in the park, which could open them up to be hunted.

The park is home to 700 grizzly bears, a tiny percentage of the nearly 4 million human visitors each year.

For now the bears of Yellowstone join the ranks of these South African lions who have unlocked the secret to human security.