The two not so-little tiger cubs were born just six weeks ago, but already they seem to be finding their feet - especially with the help of their mother, who plays the ever careful protector.
Iris is known by locals as a Russian mother-hero.
In the past three years she's given birth three times - an exceptional feat even for Siberian tigers in the wild.
Margarita Shushakova, Head of the Carnivore Department at the Krasnoyarsk Zoo said: "We are very lucky to have paired two tigers that go well with one another and got very used to one another. Once a year, we can expect tiger cubs from them."
Siberian tigers are among the world's rarest animals, with just four hundred surviving in the wild.
For many years they were hunted for their fur, but because the Siberian tiger is now an endangered species, hunting them is illegal.
It's breeding centres like this one in Krasnoyarsk in Russia that work to ensure their survival.
Over the next few months the cubs will stay with their mother, before they're re-homed at another zoo.
But it shouldn't take too long before these cute and cuddly cubs are adopted.
In the meantime staff are only too happy to spend time with their new furry friends.