Lenuta and Costel, two tiger cubs from one of the world's most endangered species, the Siberian tiger, were born in a Romanian zoo this year.
The Siberian tiger, native to northern China, southern Russia and parts of North Korea is on the brink of extinction in the wild, decimated by poaching and loss of habitat. Scientists believe only a few hundred now live outside captivity.
The cubs, now weighing 3 kilos (6.6 lb) each, were born on May 21 to six-year-old Gina and her mate, six-year-old Geo.
