They are known for being one of the most fearless predators on the earth.
So few people would relish getting up this close and personal with a giant polar bear – let alone get their camera out and start snapping away.
For half an hour, this cheeky polar bear was fascinated by a truck, and even climbed inside to investigate.
How would you react? When this giant polar bear showed an interest in this truck, the driver and photographer took out his camera and starting taking pictures
The curious animal sniffed and inspected the vehicle from the outside before casually clambering aboard.
However, the truck must not have been up to scratch because the 7ft bear, weighing approximately 300lbs, promptly jumped back out and sauntered off.
This amazing sequence of events took place on Barter Island in the eastern Alaskan Arctic and according photographer Steve Kazlowski, who has been photographing polar bears for the last 15 years, this kind of behaviour is not that unusual.
Too close for comfort: The polar bear seemed fascinated with the driver and his truck, staring at him through the window
Eye level: He then jumped up on his back legs to get an even closer look at the driver who put his hand up against the window
investigating: Keeping a close eye on the driver, the polar bear then walked around to the back of the vehicle
Mr Klazowski captured the close encounter from a distance, watching the giant animal investigating every inch of the truck.
He said: ‘It’s definitely not rare for a sub-adult polar bear, as this one was, about five years old, as they are very curious by nature.
‘The older they get, the smarter they get, and they stop doing such risky things.
‘Mentally they grow with age about what is smart to do and not do.’
Curious: The enormous animal seemed more interested in what was in the back of the truck and got up on his back legs to take a look
To the shock of the driver, the fearless predator jumped into the back of his truck, squeezing its enormous body through the opening
Unimpressed: But the bear seemed unimpressed with the inside of the vehicle and promptly did an about-turn and leaped back out
Polar bears are a threatened species and one of the main risks for them in the Alaskan arctic is the loss of sea ice as a habitat.
When ice packs pull away from the shore the bears can become stranded hundreds of miles out at sea leaving them open to starvation or drowning, said Mr Kazlowski.
So by taking their pictures, especially in ‘intimate’ situations, is an important way of raising awareness, he believes.
Photographer Steve Kazlowski, who has been photographing polar bears for the last 15 years, said this kind of behaviour was not that unusual, especially in inquisitive young polar bears
Adolescent: Mr Klazowski estimated that the polar bear was around five years old; he said older, wiser bears were less likely to show such an interest in people and trucks
Close encounter: The remarkable pictures were taken on the 1002 coastal plain of the Arctic National Wildlife Refuge in North Slope, Alaska
He added: ‘Creating the images and getting them out, first of all, shows that these animals exist in this area which is the Alaskan arctic, and capturing images as intimate as I try to capture them, hopefully causes people to stop and reflect on what is going on in the world with over consumption of natural resources.’