Still playing in their pen with stuffed animals these pair of tiny tigers will grow to become the biggest cats in the world.
They are Amur tigers, also known as Siberian tigers, born at the Yalta zoo in Ukraine.
Originally they were part of a litter of three - one did not survive.
Yalta zoo director Oleg Zubkov.
SOUNDBITE: Zoo Director Oleg Zubkov, saying (Russian)
"Today there are only a few hundred Amur tigers left in the world. They're very rare and the birth of every baby is one more big addition to the attempt to preserve these wonderful animals."
The dynamic duo isn't the first of their species born at the zoo.
Currently, Yalta zoo houses the largest number of Amur tigers in the world and keeper Oksana Zubkova revealed the secret of their success.
SOUNDBITE: Tiger Caregiver Oksana Zubkova, saying (Russian)
"We've started to add tea to the little tiger cubs' food, as it digests better, which is very important for the formation of their nourishment."
According to the World Wildlife Fund, the Amur tiger was nearly extinct in the wild in the 1960s - but today their number has climbed to 400 to 500.
Once they grow bigger these cubs will go to other zoos to diversify the population in captivity.
Rare Amur tiger cubs born in Ukraine (1:30)
Jan. 15 - A litter of rare Amur tiger cubs born at zoo located in Ukraine's Yalta. Elly Park reports. ( Transcript )