Two incredibly rare ( and adequate share adorable ) Amur Panthera pardus cubs born earlier this class at Connecticut ’s Beardsley Zoo are offering their species a luck at survival .

Amur leopard ( genus Panthera pardus orientalis),a subspecies of leopard , arecritically endangeredwith just 80 animals persist in the wilderness and 200 house in imprisonment around the world . give their little world universe , the zoological garden says that each leopard cub born is “ passing important ” to the selection of the species .

“ Amur leopard are on the brink of defunctness , ” said Zoo Director Gregg Dancho in aFacebook post . " TheSpecies Survival Plan ’s facts of life recommendation is designed to bolster the number of individuals in human care , for possible future breeding , as well as the opportunity to return certain member of the species back to the furious someday . The parentage of these cubs brings a few more treasured Amur Panthera pardus to the population , which can facilitate ensure the endurance of these majestic beast for succeeding propagation . ”

But the two rookie ’ entry into life was n’t without challenges . Six - year - former leopard Freya establish birth two three cubs on January 25   but only two survived . The third was euthanized following injuries cause by Freya from hyper - grooming behavior . At the meter , zoo veterinarians had to off the rookie and place them under 24 - hr care . The distaff cub underwent a lifesaving surgery and had her tail end remove following her mother ’s behavior . She was also treated with antibiotics for an infection and has since completed medicinal drug and is doing well .

Zoo officials say the cubs ’ six - calendar week survival is a “ vital milepost ” . They have been hand - feed the babies five time every day with a feline Milk River substitution chemical formula affix with vitamins helping the duo to put on intelligent weight ; at last count , they count around 2.5 kilograms ( 5.5 pound ) with the male measuring in slightly large .

Not only do the greenhorn offer promise to their specie , but the female rookie has a unparalleled condition known asmelanismwhere the body bring forth excesses of black pigments , melanin , ( essentially the polar ofalbinism ) . Her passing rare black colour hap in about 1 - in-10 leopard on Earth , most of which occur in Southeast Asia where tropic timber tender an copiousness of shade to blend into . Black leopards and black jaguars , the only other bounteous true cat document to experience melanism , are screw as panther .