Watch: Grizzly bear chases oil-field worker onto cab of truck

**Updated to include the original video and explain why the grizzly bear sow was so aggressive. 

When you work at a remote oil field in Alaska, it pays to be bear aware.

In the accompanying footage, an oil-field employee is shown scurrying onto the cab of a truck to escape an aggressive grizzly bear and one of her two cubs.

The tense encounter occurred inside an Arctic Pipe Inspection yard at Prudhoe Bay, where the momma bear and her cubs are fairly well known to employees.

The employee shown watching from the yellow loader vehicle told FTW Outdoors that the sow was aggressive because had temporarily lost sight of her other cub. (The employee did not wish to disclose his name.)

Another employee captured the footage from the safety of the shop.

The tense situation lasted about a minute.

The Alaska Department of Fish and Game told the employee that the sow and her cubs routinely feed in area dumpsters.

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Story originally appeared on For The Win