He is believed to be one of around 500 people who have seen polar bear cubs venturing out of their homes for the first time, first hand
Mr Kokta, who hails from Issaquah in Washington state, has been taking photos of polar bear families for the last few years, carefully learning their first moves.
And his latest shoot in Manitoba, Canada proved a first for the experienced photographer, as he captured the extremely rare phenomenon of a mother bear who had given birth to surviving triplets.
While polar bears in the wild frequently give birth to more than one cub, triplets are rare.
With three young cubs battling for their mother's milk, it is common for the stronger youngsters to push the runt aside, leaving the smallest to starve to death in the early months.
But Mr Kokta said the family he spotted appeared playful and healthy, as they posed for a family portrait-style shot with two of the cubs clambering on to their mother's back.
