But as Mr Kokta's images reveal, this family of polar bears appeared healthy and playful as the young cubs clambered over their mother and play fought with one another
While admitting he loves shooting the animal, capturing shots of polar bears comes with its challenges, not least the icy temperatures, plummeting to between -15C and -50C.
And he added much of his travel tracking the bears has to be undertaken on foot, it being almost impossible for vehicles to get close without disturbing the animals.
And in his quest to capture images of baby polar bears, Mr Kokta said he routinely faces the hurdle of their sleep patterns, with youngsters needing to sleep for long periods of time leaving him waiting around in the cold, putting himself at risk of frostbite.
He said: 'I now have thousands of pictures of polar bears as I have spent more than six months photographing them.
'I've been fortunate enough to see triplets, babies climb trees and I have many, many pictures of the cubs pulling goofy poses.
'People always seem to think the baby pictures are cute, but it is hard to relate to how much effort goes into shooting these shots - it's cold, remote and there is a lot of waiting around.'